diff --git a/Dockerfile b/Dockerfile
index 376ad74..5fccfe4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,11 @@
 FROM node:22-alpine AS build
 ARG TENANT=loop42
+ARG AUTH_DISABLED=false
 WORKDIR /app
 COPY package.json package-lock.json ./
 RUN npm ci
 COPY . .
+ENV VITE_AUTH_DISABLED=$AUTH_DISABLED
 RUN npx vite build --mode $TENANT
 
 FROM nginx:alpine
diff --git a/css/base.css b/css/base.css
index 5e23271..449ef8a 100644
--- a/css/base.css
+++ b/css/base.css
@@ -147,37 +147,6 @@ body {
     --font-sans: 'Raleway', 'Segoe UI', sans-serif;
 }
 
-/* ── Workhorse theme (neutral dark + 6 happy kids colors) ─── */
-/* Palette: #73B96E #46915C #F25E44 #489FB2 #FFD96C #C895C0   */
-/* Backgrounds: neutral grays, not from palette                */
-[data-theme="loop42"] {
-    --bg:          #1A212C;
-    --surface:     #222a36;
-    --border:      #1D7872;
-    --chat-bg:     #1e2630;
-    --agent:       #222a36;
-    --agent-border:#1D7872;
-    --muted:       #2a3340;
-    --muted-text:  #71B095;
-
-    --text:        #e8e6e0;
-    --text-dim:    #71B095;
-
-    --accent:      #1D7872;   /* deep teal — grounded */
-    --user-bubble: #2a3340;
-    --primary:     #71B095;   /* sage green — links */
-    --btn-bg:      #1D7872;
-    --btn-text:    #e8e6e0;
-    --btn-hover:   #71B095;
-
-    --input-bg:    #222a36;
-    --input-border:#1D7872;
-    --input-text:  #e8e6e0;
-
-    /* Panel system */
-    --panel-bg:     #1e2630;
-    --panel-shadow: 0 2px 12px rgba(0,0,0,0.35), 0 0 1px rgba(29,120,114,0.15);
-}
 
 /* Scrollbars — OverlayScrollbars handles main containers.
    Fallback for any native scrollbar we missed. */
diff --git a/package-lock.json b/package-lock.json
index d1d072f..c0f11c2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,9 +21,12 @@
       "devDependencies": {
         "@tailwindcss/vite": "^4.2.2",
         "@vitejs/plugin-vue": "^6.0.4",
+        "@vue/test-utils": "^2.4.6",
+        "happy-dom": "^20.8.9",
         "tailwindcss": "^4.2.2",
         "typescript": "^5.9.3",
         "vite": "^7.3.1",
+        "vitest": "^4.1.2",
         "vue-tsc": "^3.2.5"
       }
     },
@@ -540,6 +543,24 @@
         "vue": ">= 3"
       }
     },
+    "node_modules/@isaacs/cliui": {
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
+      "integrity": "sha512-O8jcjabXaleOG9DQ0+ARXWZBTfnP4WNAqzuiJK7ll44AmxGKv/J2M4TPjxjY3znBCfvBXFzucm1twdyFybFqEA==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "string-width": "^5.1.2",
+        "string-width-cjs": "npm:string-width@^4.2.0",
+        "strip-ansi": "^7.0.1",
+        "strip-ansi-cjs": "npm:strip-ansi@^6.0.1",
+        "wrap-ansi": "^8.1.0",
+        "wrap-ansi-cjs": "npm:wrap-ansi@^7.0.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/@jridgewell/gen-mapping": {
       "version": "0.3.13",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz",
@@ -598,6 +619,24 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@one-ini/wasm": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/@one-ini/wasm/-/wasm-0.1.1.tgz",
+      "integrity": "sha512-XuySG1E38YScSJoMlqovLru4KTUNSjgVTIjyh7qMX6aNN5HY5Ct5LhRJdxO79JtTzKfzV/bnWpz+zquYrISsvw==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@pkgjs/parseargs": {
+      "version": "0.11.0",
+      "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
+      "integrity": "sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "engines": {
+        "node": ">=14"
+      }
+    },
     "node_modules/@rolldown/pluginutils": {
       "version": "1.0.0-rc.2",
       "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-rc.2.tgz",
@@ -955,6 +994,13 @@
         "win32"
       ]
     },
+    "node_modules/@standard-schema/spec": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz",
+      "integrity": "sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@tailwindcss/node": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/@tailwindcss/node/-/node-4.2.2.tgz",
@@ -1227,6 +1273,24 @@
         "vite": "^5.2.0 || ^6 || ^7 || ^8"
       }
     },
+    "node_modules/@types/chai": {
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.2.3.tgz",
+      "integrity": "sha512-Mw558oeA9fFbv65/y4mHtXDs9bPnFMZAL/jxdPFUpOHHIXX91mcgEHbS5Lahr+pwZFR8A7GQleRWeI6cGFC2UA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/deep-eql": "*",
+        "assertion-error": "^2.0.1"
+      }
+    },
+    "node_modules/@types/deep-eql": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/@types/deep-eql/-/deep-eql-4.0.2.tgz",
+      "integrity": "sha512-c9h9dVVMigMPc4bwTvC5dxqtqJZwQPePsWjPlpSOnojbor6pGqdk541lfA7AqFQr5pB1BRdq0juY9db81BwyFw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/estree": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -1234,6 +1298,33 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/node": {
+      "version": "25.5.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.5.0.tgz",
+      "integrity": "sha512-jp2P3tQMSxWugkCUKLRPVUpGaL5MVFwF8RDuSRztfwgN1wmqJeMSbKlnEtQqU8UrhTmzEmZdu2I6v2dpp7XIxw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~7.18.0"
+      }
+    },
+    "node_modules/@types/whatwg-mimetype": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz",
+      "integrity": "sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@types/ws": {
+      "version": "8.18.1",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.1.tgz",
+      "integrity": "sha512-ThVF6DCVhA8kUGy+aazFQ4kXQ7E1Ty7A3ypFOe0IcJV8O/M511G99AW24irKrW56Wt44yG9+ij8FaqoBGkuBXg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@vitejs/plugin-vue": {
       "version": "6.0.4",
       "resolved": "https://registry.npmjs.org/@vitejs/plugin-vue/-/plugin-vue-6.0.4.tgz",
@@ -1251,6 +1342,129 @@
         "vue": "^3.2.25"
       }
     },
+    "node_modules/@vitest/expect": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-4.1.2.tgz",
+      "integrity": "sha512-gbu+7B0YgUJ2nkdsRJrFFW6X7NTP44WlhiclHniUhxADQJH5Szt9mZ9hWnJPJ8YwOK5zUOSSlSvyzRf0u1DSBQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@standard-schema/spec": "^1.1.0",
+        "@types/chai": "^5.2.2",
+        "@vitest/spy": "4.1.2",
+        "@vitest/utils": "4.1.2",
+        "chai": "^6.2.2",
+        "tinyrainbow": "^3.1.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/@vitest/mocker": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-4.1.2.tgz",
+      "integrity": "sha512-Ize4iQtEALHDttPRCmN+FKqOl2vxTiNUhzobQFFt/BM1lRUTG7zRCLOykG/6Vo4E4hnUdfVLo5/eqKPukcWW7Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/spy": "4.1.2",
+        "estree-walker": "^3.0.3",
+        "magic-string": "^0.30.21"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "msw": "^2.4.9",
+        "vite": "^6.0.0 || ^7.0.0 || ^8.0.0"
+      },
+      "peerDependenciesMeta": {
+        "msw": {
+          "optional": true
+        },
+        "vite": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@vitest/mocker/node_modules/estree-walker": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-3.0.3.tgz",
+      "integrity": "sha512-7RUKfXgSMMkzt6ZuXmqapOurLGPPfgj6l9uRZ7lRGolvk0y2yocc35LdcxKC5PQZdn2DMqioAQ2NoWcrTKmm6g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/estree": "^1.0.0"
+      }
+    },
+    "node_modules/@vitest/pretty-format": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/pretty-format/-/pretty-format-4.1.2.tgz",
+      "integrity": "sha512-dwQga8aejqeuB+TvXCMzSQemvV9hNEtDDpgUKDzOmNQayl2OG241PSWeJwKRH3CiC+sESrmoFd49rfnq7T4RnA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tinyrainbow": "^3.1.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/@vitest/runner": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/runner/-/runner-4.1.2.tgz",
+      "integrity": "sha512-Gr+FQan34CdiYAwpGJmQG8PgkyFVmARK8/xSijia3eTFgVfpcpztWLuP6FttGNfPLJhaZVP/euvujeNYar36OQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/utils": "4.1.2",
+        "pathe": "^2.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/@vitest/snapshot": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/snapshot/-/snapshot-4.1.2.tgz",
+      "integrity": "sha512-g7yfUmxYS4mNxk31qbOYsSt2F4m1E02LFqO53Xpzg3zKMhLAPZAjjfyl9e6z7HrW6LvUdTwAQR3HHfLjpko16A==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/pretty-format": "4.1.2",
+        "@vitest/utils": "4.1.2",
+        "magic-string": "^0.30.21",
+        "pathe": "^2.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/@vitest/spy": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-4.1.2.tgz",
+      "integrity": "sha512-DU4fBnbVCJGNBwVA6xSToNXrkZNSiw59H8tcuUspVMsBDBST4nfvsPsEHDHGtWRRnqBERBQu7TrTKskmjqTXKA==",
+      "dev": true,
+      "license": "MIT",
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/@vitest/utils": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/@vitest/utils/-/utils-4.1.2.tgz",
+      "integrity": "sha512-xw2/TiX82lQHA06cgbqRKFb5lCAy3axQ4H4SoUFhUsg+wztiet+co86IAMDtF6Vm1hc7J6j09oh/rgDn+JdKIQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/pretty-format": "4.1.2",
+        "convert-source-map": "^2.0.0",
+        "tinyrainbow": "^3.1.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
     "node_modules/@volar/language-core": {
       "version": "2.4.28",
       "resolved": "https://registry.npmjs.org/@volar/language-core/-/language-core-2.4.28.tgz",
@@ -1450,6 +1664,27 @@
       "integrity": "sha512-w7SR0A5zyRByL9XUkCfdLs7t9XOHUyJ67qPGQjOou3p6GvBeBW+AVjUUmlxtZ4PIYaRvE+1LmK44O4uajlZwcg==",
       "license": "MIT"
     },
+    "node_modules/@vue/test-utils": {
+      "version": "2.4.6",
+      "resolved": "https://registry.npmjs.org/@vue/test-utils/-/test-utils-2.4.6.tgz",
+      "integrity": "sha512-FMxEjOpYNYiFe0GkaHsnJPXFHxQ6m4t8vI/ElPGpMWxZKpmRvQ33OIrvRXemy6yha03RxhOlQuy+gZMC3CQSow==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "js-beautify": "^1.14.9",
+        "vue-component-type-helpers": "^2.0.0"
+      }
+    },
+    "node_modules/abbrev": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-2.0.0.tgz",
+      "integrity": "sha512-6/mh1E2u2YgEsCHdY0Yx5oW+61gZU+1vXaoiHHrpKeuRNNgFvS+/jrwHiQhB5apAf5oB7UB7E19ol2R2LKH8hQ==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
+      }
+    },
     "node_modules/acorn": {
       "version": "8.16.0",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.16.0.tgz",
@@ -1469,6 +1704,42 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/ansi-regex": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.2.2.tgz",
+      "integrity": "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+      }
+    },
+    "node_modules/ansi-styles": {
+      "version": "6.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz",
+      "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/assertion-error": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-2.0.1.tgz",
+      "integrity": "sha512-Izi8RQcffqCeNVgFigKli1ssklIbpHnCYc6AknXGYoB6grJqyeby7jv12JUQgmTAnIDnbck1uxksT4dzN3PWBA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/ast-kit": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/ast-kit/-/ast-kit-2.2.0.tgz",
@@ -1501,6 +1772,13 @@
         "url": "https://github.com/sponsors/sxzz"
       }
     },
+    "node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/birpc": {
       "version": "2.9.0",
       "resolved": "https://registry.npmjs.org/birpc/-/birpc-2.9.0.tgz",
@@ -1510,6 +1788,16 @@
         "url": "https://github.com/sponsors/antfu"
       }
     },
+    "node_modules/brace-expansion": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+      "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
     "node_modules/buffer-from": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
@@ -1519,6 +1807,16 @@
       "optional": true,
       "peer": true
     },
+    "node_modules/chai": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-6.2.2.tgz",
+      "integrity": "sha512-NUPRluOfOiTKBKvWPtSD4PhFvWCqOi0BGStNWs57X9js7XGTprSmFoz5F0tWhR4WPjNeR9jXqdC7/UpSJTnlRg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/chokidar": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-5.0.0.tgz",
@@ -1534,12 +1832,60 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/color-convert": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "color-name": "~1.1.4"
+      },
+      "engines": {
+        "node": ">=7.0.0"
+      }
+    },
+    "node_modules/color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/commander": {
+      "version": "10.0.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-10.0.1.tgz",
+      "integrity": "sha512-y4Mg2tXshplEbSGzx7amzPwKKOCGuoSRP/CjEdwwk0FOGlUbq6lKuoyDZTNZkmxHdJtp54hdfY/JUrdL7Xfdug==",
+      "dev": true,
+      "license": "MIT",
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+      }
+    },
+    "node_modules/ws": {
+      "version": "8.20.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.0.tgz",
+      "integrity": "sha512-sAt8BhgNbzCtgGbt2OxmpuryO63ZoDk/sqaB/znQm94T4fCEsy/yV+7CdC1kJhOU9lboAEU7R3kquuycDoibVA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/yaml": {
       "version": "2.8.2",
       "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.8.2.tgz",
diff --git a/package.json b/package.json
index 5c5adac..224b00b 100644
--- a/package.json
+++ b/package.json
@@ -5,14 +5,19 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest run",
+    "test:watch": "vitest"
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.2.2",
     "@vitejs/plugin-vue": "^6.0.4",
+    "@vue/test-utils": "^2.4.6",
+    "happy-dom": "^20.8.9",
     "tailwindcss": "^4.2.2",
     "typescript": "^5.9.3",
     "vite": "^7.3.1",
+    "vitest": "^4.1.2",
     "vue-tsc": "^3.2.5"
   },
   "dependencies": {
diff --git a/src/components/AppSidebar.vue b/src/components/AppSidebar.vue
index 941f8af..27e0218 100644
--- a/src/components/AppSidebar.vue
+++ b/src/components/AppSidebar.vue
@@ -14,8 +14,8 @@
             </button>
             <RouterLink v-if="isOpen" to="/" class="sidebar-brand" title="Home" @click="collapse">
                 <img v-if="navLogo" :src="navLogo" class="sidebar-brand-logo" alt="Home" />
-                <component v-else :is="THEME_ICONS[theme]" class="sidebar-brand-icon" />
-                <span class="sidebar-brand-name">{{ THEME_NAMES[theme] }}</span>
+                <component v-else :is="brandIcon" class="sidebar-brand-icon" />
+                <span class="sidebar-brand-name">{{ tenant.name }}</span>
             </RouterLink>
         </div>
 
@@ -90,15 +90,18 @@ import {
     HomeIcon,
     BeakerIcon,
 } from '@heroicons/vue/20/solid';
-import { THEME_ICONS, THEME_LOGOS, THEME_NAMES, useTheme } from '../composables/useTheme';
+import { THEME_ICONS, THEME_LOGOS } from '../composables/useTheme';
+import type { Theme } from '../composables/useTheme';
 import { auth } from '../store';
+import tenant from '../tenant';
 
 const emit = defineEmits<{ logout: [] }>();
 
 const route = useRoute();
 const router = useRouter();
-const { theme } = useTheme();
-const navLogo = computed(() => THEME_LOGOS[theme.value]);
+const brandTheme = tenant.themes.dark as Theme;
+const brandIcon = THEME_ICONS[brandTheme];
+const navLogo = THEME_LOGOS[brandTheme];
 
 const { isLoggedIn, currentUser } = auth;
 
diff --git a/src/components/AppToolbar.vue b/src/components/AppToolbar.vue
index 2e4b5f1..6b4f762 100644
--- a/src/components/AppToolbar.vue
+++ b/src/components/AppToolbar.vue
@@ -30,10 +30,11 @@
             </button>
         </div>
 
-        <!-- Group: Themes -->
+        <!-- Group: Bright/dark toggle -->
         <div class="toolbar-group">
-            <button v-for="t in THEMES" :key="t" class="toolbar-btn" :class="{ active: theme === t }" @click="setTheme(t)" :title="THEME_NAMES[t]">
-                <component :is="THEME_ICONS[t]" class="w-6 h-6" />
+            <button class="toolbar-btn" :class="{ active: !isDark }" @click="toggleMode" :title="isDark ? 'Switch to bright' : 'Switch to dark'">
+                <SunIcon v-if="!isDark" class="w-6 h-6" />
+                <MoonIcon v-else class="w-6 h-6" />
             </button>
         </div>
 
@@ -81,20 +82,17 @@
 <script setup lang="ts">
 defineOptions({ name: 'AppToolbar' });
 import { ref, computed, type Component } from 'vue';
-import { WifiIcon, SignalIcon, QueueListIcon, CpuChipIcon, EyeIcon, CircleStackIcon, ChatBubbleLeftIcon, RectangleGroupIcon, FolderIcon, SparklesIcon } from '@heroicons/vue/20/solid';
-import { THEME_ICONS, THEME_NAMES, useTheme, type Theme } from '../composables/useTheme';
+import { WifiIcon, SignalIcon, QueueListIcon, CpuChipIcon, EyeIcon, CircleStackIcon, ChatBubbleLeftIcon, RectangleGroupIcon, FolderIcon, SparklesIcon, SunIcon, MoonIcon } from '@heroicons/vue/20/solid';
+import { useTheme } from '../composables/useTheme';
 import { ws, auth, takeover } from '../store';
 import { useChatStore } from '../store/chat';
 import { useUI } from '../composables/ui';
 import { usePanels, type PanelId } from '../composables/usePanels';
 import { injectToolbar } from '../composables/useToolbar';
 
-const THEMES: Theme[] = ['loop42', 'titan', 'eras'];
-
-const { isLoggedIn } = auth;
-const { theme, setTheme } = useTheme();
 const chatStore = useChatStore();
 const { availablePanels, togglePanel: togglePanelBtn, isPanelOpen, togglePane, isPaneOpen } = usePanels();
+const { isDark, toggleMode } = useTheme();
 
 // Toolbar config — set by active view via provideToolbar()
 const toolbar = injectToolbar();
diff --git a/src/components/ContentLayout.vue b/src/components/ContentLayout.vue
index 4d4e65f..80f3cdc 100644
--- a/src/components/ContentLayout.vue
+++ b/src/components/ContentLayout.vue
@@ -96,9 +96,9 @@ onBeforeUnmount(() => {
 .content-layout.col {
   flex-direction: column;
 }
-.content-layout.col .slot-chat      { flex: 40 1 0; border-bottom: 1px solid var(--border); }
-.content-layout.col .slot-dashboard { flex: 40 1 0; border-bottom: 1px solid var(--border); }
-.content-layout.col .slot-thin      { flex: 10 1 0; display: flex; flex-direction: row; }
+.content-layout.col .slot-chat      { flex: 40 1 0; border-bottom: 1px solid var(--border); order: 2; }
+.content-layout.col .slot-dashboard { flex: 40 1 0; border-bottom: 1px solid var(--border); order: 1; }
+.content-layout.col .slot-thin      { flex: 10 1 0; display: flex; flex-direction: row; order: 3; }
 .content-layout.col .slot-files     { flex: 1 1 0; border-right: 1px solid var(--border); }
 .content-layout.col .slot-artifacts { flex: 1 1 0; }
 
diff --git a/src/composables/auth.ts b/src/composables/auth.ts
index 0b3e28c..df4520f 100644
--- a/src/composables/auth.ts
+++ b/src/composables/auth.ts
@@ -56,7 +56,8 @@ function _isTokenExpired(token: string): boolean {
         const payload = JSON.parse(atob(token.split('.')[1]));
         return payload.exp * 1000 < Date.now();
     } catch {
-        return true;
+        // Non-JWT tokens (service tokens) are not considered expired
+        return false;
     }
 }
 
@@ -202,6 +203,15 @@ export function useAuth(connectFn: () => void) {
      * Auto-connect if we have a valid token on page load.
      */
     function tryAutoConnect(): void {
+        // Auth disabled (test/headless mode) — auto-login with any token or a dummy
+        if (import.meta.env.VITE_AUTH_DISABLED === 'true') {
+            if (!localStorage.getItem(TOKEN_KEY)) {
+                localStorage.setItem(TOKEN_KEY, 'test-token');
+            }
+            isLoggedIn.value = true;
+            connectFn();
+            return;
+        }
         if (_getStoredToken()) {
             isLoggedIn.value = true;
             connectFn();
diff --git a/src/composables/usePanels.ts b/src/composables/usePanels.ts
index e27fb96..3a13a0a 100644
--- a/src/composables/usePanels.ts
+++ b/src/composables/usePanels.ts
@@ -82,7 +82,7 @@ const openPaneIds = ref<Set<PaneId>>(loadSet<PaneId>(PANES_KEY, ['chat', 'dashbo
 export function usePanels() {
     // Current role
     const role = computed<UserRole>(() => {
-        if (tenant.features.devTools) return 'dev';
+        if (tenant.features.devTools || import.meta.env.DEV) return 'dev';
         return 'user';
     });
 
diff --git a/src/composables/useTheme.ts b/src/composables/useTheme.ts
index 6cfcd4d..a8121ef 100644
--- a/src/composables/useTheme.ts
+++ b/src/composables/useTheme.ts
@@ -2,52 +2,71 @@ import { ref, watch, type Component } from 'vue';
 import { CommandLineIcon, SunIcon, CubeTransparentIcon } from '@heroicons/vue/24/outline';
 import tenant from '../tenant';
 
-export type Theme = 'titan' | 'eras' | 'loop42';
+export type Theme = 'titan' | 'titan-bright' | 'eras' | 'eras-bright' | 'loop42' | 'loop42-bright';
+type Mode = 'dark' | 'bright';
 
-const STORAGE_KEY = 'hermes_theme';
+const STORAGE_KEY = 'nyx_mode';
 
-/** Heroicon component per theme — used in nav, home page, and theme buttons */
+/** Heroicon component per theme — used in nav, home page */
 export const THEME_ICONS: Record<Theme, Component> = {
     titan: CommandLineIcon,
+    'titan-bright': CommandLineIcon,
     eras: SunIcon,
+    'eras-bright': SunIcon,
     loop42: CubeTransparentIcon,
+    'loop42-bright': CubeTransparentIcon,
 };
 
 /** Display name per theme */
 export const THEME_NAMES: Record<Theme, string> = {
     titan: 'Titan',
+    'titan-bright': 'Titan',
     eras: 'ERAS',
+    'eras-bright': 'ERAS',
     loop42: 'loop42',
+    'loop42-bright': 'loop42',
 };
 
 /** Optional external logo per theme (e.g. customer branding). Null = use THEME_ICONS. */
 export const THEME_LOGOS: Record<Theme, string | null> = {
-    titan: null,
-    eras: null,
-    loop42: null,
+    titan: null, 'titan-bright': null,
+    eras: null, 'eras-bright': null,
+    loop42: null, 'loop42-bright': null,
 };
 
-// Map agent id → theme (unlisted agents default to 'titan')
+// Map agent id → theme (unlisted agents default to tenant dark theme)
 export const AGENT_THEME_MAP: Record<string, Theme> = {
     eras: 'eras',
 };
 
 export function agentLogo(agentId: string): string | null {
-    const t = AGENT_THEME_MAP[agentId] ?? 'titan';
+    const t = AGENT_THEME_MAP[agentId] ?? (tenant.themes.dark as Theme);
     return THEME_LOGOS[t];
 }
 
-const stored = localStorage.getItem(STORAGE_KEY);
-const defaultTheme = (tenant.defaultTheme || 'loop42') as Theme;
-const theme = ref<Theme>(
-    stored === 'workhorse' ? 'loop42' :   // migrate legacy name
-    (stored as Theme) || defaultTheme
-);
+// Migrate from legacy hermes_theme storage
+function migrateMode(): Mode {
+    const legacy = localStorage.getItem('hermes_theme');
+    if (legacy) {
+        localStorage.removeItem('hermes_theme');
+        const bright = legacy === 'eras' || legacy.includes('bright');
+        return bright ? 'bright' : 'dark';
+    }
+    return 'dark';
+}
+
+const storedMode = localStorage.getItem(STORAGE_KEY) as Mode | null;
+const initMode: Mode = storedMode ?? migrateMode();
+const isDark = ref<boolean>(initMode === 'dark');
+
+function activeTheme(): Theme {
+    return (isDark.value ? tenant.themes.dark : tenant.themes.bright) as Theme;
+}
 
 const THEME_FAVICONS: Record<Theme, string> = {
-    titan: '/favicon-titan.svg',
-    eras: '/favicon-eras.svg',
-    loop42: '/favicon-loop42.svg',
+    titan: '/favicon-titan.svg', 'titan-bright': '/favicon-titan.svg',
+    eras: '/favicon-eras.svg',   'eras-bright': '/favicon-eras.svg',
+    loop42: '/favicon-loop42.svg', 'loop42-bright': '/favicon-loop42.svg',
 };
 
 function applyTheme(t: Theme) {
@@ -56,20 +75,24 @@ function applyTheme(t: Theme) {
     } else {
         document.documentElement.setAttribute('data-theme', t);
     }
-    // Update favicon
     const link = document.querySelector('link[rel="icon"]') as HTMLLinkElement | null;
     if (link) link.href = THEME_FAVICONS[t] || '/favicon.svg';
 }
 
+// theme ref — the active CSS theme name (for callers using THEME_ICONS/THEME_NAMES)
+const theme = ref<Theme>(activeTheme());
+
 // Apply on init
 applyTheme(theme.value);
 
-watch(theme, (t) => {
+watch(isDark, () => {
+    const t = activeTheme();
+    theme.value = t;
     applyTheme(t);
-    localStorage.setItem(STORAGE_KEY, t);
+    localStorage.setItem(STORAGE_KEY, isDark.value ? 'dark' : 'bright');
 });
 
 export function useTheme() {
-    function setTheme(t: Theme) { theme.value = t; }
-    return { theme, setTheme };
+    function toggleMode() { isDark.value = !isDark.value; }
+    return { theme, isDark, toggleMode };
 }
diff --git a/src/composables/ws.ts b/src/composables/ws.ts
index ccb303d..1f2e9e6 100644
--- a/src/composables/ws.ts
+++ b/src/composables/ws.ts
@@ -38,6 +38,7 @@ let _chatAbort: AbortController | null = null;
 // Health stream abort + reconnect
 let _healthAbort: AbortController | null = null;
 let _healthReconnectTimer: ReturnType<typeof setTimeout> | null = null;
+let _healthRetryDelay = 3000; // starts at 3s, backs off to 15s
 
 const connected = H.wsConnected ?? ref(false);
 const status = H.wsStatus ?? ref('Disconnected');
@@ -76,7 +77,15 @@ function _dispatch(data: any) {
 }
 
 function getTakeover() {
-    if (!_takeover) _takeover = useTakeover(send);
+    if (!_takeover) {
+        _takeover = useTakeover(send);
+        // Expose dispatch for Chrome extension forwarding (window.__hermes._takeoverDispatch)
+        (useHermes() as any)._takeoverDispatch = (cmd: string, args: any, resolve: (r: any) => void) => {
+            _takeover!.dispatch('ext-fwd', cmd, args, (msg: any) => {
+                resolve(msg.result !== undefined ? msg.result : (msg.error ? { error: msg.error } : null));
+            });
+        };
+    }
     return _takeover;
 }
 
@@ -95,13 +104,17 @@ async function _startHealthStream(): Promise<void> {
             headers: { 'Authorization': `Bearer ${token}` },
             signal: _healthAbort.signal,
         });
-        if (!res.ok) return;
+        if (!res.ok) {
+            // Server up but returned error — retry after backoff
+            throw new Error(`health-stream ${res.status}`);
+        }
 
         const reader = res.body!.getReader();
         const decoder = new TextDecoder();
         const wasDisconnected = !connected.value;
         connected.value = true;
         status.value = 'Connected';
+        _resetHealthBackoff();
         if (wasDisconnected) {
             _dispatch({ type: 'connection_state', state: 'SYNCED' });
         }
@@ -135,14 +148,19 @@ async function _startHealthStream(): Promise<void> {
 
     // Stream ended or errored — server gone
     connected.value = false;
-    status.value = 'Disconnected';
+    status.value = 'Reconnecting...';
     _dispatch({ type: 'connection_state', state: 'CONNECTING' });
-    // Auto-reconnect after 3s
+    // Auto-reconnect with backoff (3s → 6s → 12s → 15s max)
     if (_healthReconnectTimer) clearTimeout(_healthReconnectTimer);
     _healthReconnectTimer = setTimeout(() => {
         _healthReconnectTimer = null;
+        _healthRetryDelay = Math.min(_healthRetryDelay * 2, 15000);
         if (_isLoggedInRef?.value !== false) _startHealthStream();
-    }, 3000);
+    }, _healthRetryDelay);
+}
+
+function _resetHealthBackoff() {
+    _healthRetryDelay = 3000;
 }
 
 /**
diff --git a/src/main.ts b/src/main.ts
index c41a405..587c878 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -20,6 +20,8 @@ import { createPinia } from 'pinia';
 import 'overlayscrollbars/overlayscrollbars.css';
 import '../css/tailwind.css';
 import '../css/base.css';
+import '../tenants/loop42/theme.css';
+import '../tenants/dev/theme.css';
 import '../css/scrollbar.css';
 import '../css/layout.css';
 import '../css/sidebar.css';
@@ -37,6 +39,12 @@ app.use(pinia);
 app.use(router);
 app.mount('#app');
 
-if (import.meta.env.DEV) {
+if (import.meta.env.DEV || import.meta.env.VITE_AUTH_DISABLED === 'true') {
     (window as any).__pinia = pinia;
+    // Expose ws.send for Playwright test automation (deferred so store.ts initializes first)
+    import('./store').then(({ ws }) => {
+        (window as any).__nyxSend = (content: string) => {
+            ws.send({ type: 'message', content });
+        };
+    });
 }
diff --git a/src/router.ts b/src/router.ts
index 03980f1..516c151 100644
--- a/src/router.ts
+++ b/src/router.ts
@@ -1,6 +1,5 @@
 import { createRouter, createWebHistory, type RouteRecordRaw } from 'vue-router';
 import LoginView from './views/LoginView.vue';
-import { THEME_NAMES, useTheme } from './composables/useTheme';
 import tenant from './tenant';
 import { HomePage, ImpressumPage, DatenschutzPage } from './tenantPages';
 
@@ -12,6 +11,7 @@ const routes: RouteRecordRaw[] = [
     { path: '/nyx',     name: 'nyx',     component: () => import('./views/AgentsView.vue'),  meta: { suffix: 'nyx',   requiresAuth: true }    },
     { path: '/agents',  redirect: '/nyx'                                                                                    },
     { path: '/chat',    redirect: '/nyx'                                                                                    },
+    { path: '/tests',   name: 'tests',   component: () => import('./views/TestsView.vue'),   meta: { suffix: 'Tests' }      },
 ];
 
 if (tenant.features.viewer) {
@@ -27,6 +27,7 @@ const router = createRouter({
 
 // Auth guard — redirect to /login for protected routes
 router.beforeEach((to) => {
+    if (import.meta.env.VITE_AUTH_DISABLED === 'true') return; // test mode
     if (to.meta?.requiresAuth) {
         const token = localStorage.getItem('nyx_session');
         if (!token) {
@@ -37,10 +38,8 @@ router.beforeEach((to) => {
 });
 
 router.afterEach((to) => {
-    const { theme } = useTheme();
-    const brand = THEME_NAMES[theme.value] || 'loop42';
     const suffix = (to.meta?.suffix as string) || '';
-    document.title = suffix ? `${brand} - ${suffix}` : brand;
+    document.title = suffix ? `${tenant.name} - ${suffix}` : tenant.name;
 });
 
 export default router;
diff --git a/src/store/chat.test.ts b/src/store/chat.test.ts
new file mode 100644
index 0000000..fab191b
--- /dev/null
+++ b/src/store/chat.test.ts
@@ -0,0 +1,128 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import { setActivePinia, createPinia } from 'pinia';
+import { useChatStore } from './chat';
+
+describe('useChatStore', () => {
+    beforeEach(() => {
+        setActivePinia(createPinia());
+    });
+
+    describe('artifacts', () => {
+        it('starts with empty artifacts', () => {
+            const store = useChatStore();
+            expect(store.artifacts).toEqual([]);
+            expect(store.displayArtifacts).toEqual([]);
+            expect(store.konsoleArtifacts).toEqual([]);
+        });
+
+        it('filters display artifacts (data_table, document_page, entity_detail)', () => {
+            const store = useChatStore();
+            store.setArtifacts([
+                { id: '1', type: 'data_table', data: {} },
+                { id: '2', type: 'machine', data: {} },
+                { id: '3', type: 'entity_detail', data: {} },
+                { id: '4', type: 'document_page', data: {} },
+            ]);
+            expect(store.displayArtifacts).toHaveLength(3);
+            expect(store.displayArtifacts.map((a: any) => a.id)).toEqual(['1', '3', '4']);
+        });
+
+        it('filters konsole artifacts (machine, action_bar, status)', () => {
+            const store = useChatStore();
+            store.setArtifacts([
+                { id: '1', type: 'data_table', data: {} },
+                { id: '2', type: 'machine', data: {} },
+                { id: '3', type: 'action_bar', data: {} },
+                { id: '4', type: 'status', data: {} },
+            ]);
+            expect(store.konsoleArtifacts).toHaveLength(3);
+            expect(store.konsoleArtifacts.map((a: any) => a.id)).toEqual(['2', '3', '4']);
+        });
+
+        it('clearArtifacts empties all', () => {
+            const store = useChatStore();
+            store.setArtifacts([{ id: '1', type: 'data_table', data: {} }]);
+            expect(store.artifacts).toHaveLength(1);
+            store.clearArtifacts();
+            expect(store.artifacts).toEqual([]);
+            expect(store.displayArtifacts).toEqual([]);
+        });
+    });
+
+    describe('state machines', () => {
+        it('defaults to NO_SESSION channel and CONNECTING connection', () => {
+            const store = useChatStore();
+            expect(store.channelState).toBe('NO_SESSION');
+            expect(store.connectionState).toBe('CONNECTING');
+        });
+
+        it('smState shows connection state when not SYNCED', () => {
+            const store = useChatStore();
+            store.connectionState = 'LOADING_HISTORY';
+            expect(store.smState).toBe('LOADING_HISTORY');
+        });
+
+        it('smState shows channel state when SYNCED', () => {
+            const store = useChatStore();
+            store.connectionState = 'SYNCED';
+            store.channelState = 'READY';
+            expect(store.smState).toBe('READY');
+        });
+
+        it('isRunning when AGENT_RUNNING', () => {
+            const store = useChatStore();
+            store.channelState = 'AGENT_RUNNING';
+            expect(store.isRunning).toBe(true);
+        });
+
+        it('not running when READY', () => {
+            const store = useChatStore();
+            store.channelState = 'READY';
+            expect(store.isRunning).toBe(false);
+        });
+    });
+
+    describe('messages', () => {
+        it('starts with empty messages', () => {
+            const store = useChatStore();
+            expect(store.messages).toEqual([]);
+        });
+
+        it('handoverPending is true when confirmNew message exists', () => {
+            const store = useChatStore();
+            store.messages.push({ confirmNew: true, confirmed: false });
+            expect(store.handoverPending).toBe(true);
+        });
+
+        it('handoverPending is false when confirmed', () => {
+            const store = useChatStore();
+            store.messages.push({ confirmNew: true, confirmed: true });
+            expect(store.handoverPending).toBe(false);
+        });
+    });
+
+    describe('sessionCost', () => {
+        it('returns 0 when no pricing or usage', () => {
+            const store = useChatStore();
+            expect(store.sessionCost).toBe(0);
+        });
+
+        it('calculates cost from tokens and pricing', () => {
+            const store = useChatStore();
+            store.finance = {
+                nextTurnFloor: 0,
+                projectionDelta: 0,
+                currentContextTokens: 0,
+                lastTurnCost: 0,
+                pricing: { prompt: 3.0, completion: 15.0 },
+            };
+            store.sessionTotalTokens = {
+                input_tokens: 1000,
+                cache_read_tokens: 0,
+                output_tokens: 500,
+            };
+            // (1000 * 3.0 + 500 * 15.0) / 1_000_000 = 10500 / 1_000_000 = 0.0105
+            expect(store.sessionCost).toBeCloseTo(0.0105);
+        });
+    });
+});
diff --git a/src/tenant.ts b/src/tenant.ts
index 2e749d9..4b043ff 100644
--- a/src/tenant.ts
+++ b/src/tenant.ts
@@ -12,6 +12,11 @@ export interface TenantFeatures {
     devTools: boolean;
 }
 
+export interface TenantThemes {
+    dark: string;
+    bright: string;
+}
+
 export interface TenantConfig {
     id: string;
     name: string;
@@ -19,6 +24,7 @@ export interface TenantConfig {
     defaultTheme: string;
     oidcClientId: string;
     features: TenantFeatures;
+    themes: TenantThemes;
 }
 
 // Vite replaces import.meta.env.VITE_TENANT at build time,
diff --git a/src/utils/apiBase.test.ts b/src/utils/apiBase.test.ts
new file mode 100644
index 0000000..f757daf
--- /dev/null
+++ b/src/utils/apiBase.test.ts
@@ -0,0 +1,41 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// getApiBase caches the result, so we need fresh imports per test
+describe('getApiBase', () => {
+    beforeEach(() => {
+        vi.resetModules();
+    });
+
+    it('returns empty string when VITE_WS_URL is not set', async () => {
+        vi.stubEnv('VITE_WS_URL', '');
+        const { getApiBase } = await import('./apiBase');
+        expect(getApiBase()).toBe('');
+    });
+
+    it('converts wss:// to https://', async () => {
+        vi.stubEnv('VITE_WS_URL', 'wss://assay.loop42.de/ws');
+        const { getApiBase } = await import('./apiBase');
+        expect(getApiBase()).toBe('https://assay.loop42.de');
+    });
+
+    it('converts ws:// to http://', async () => {
+        vi.stubEnv('VITE_WS_URL', 'ws://localhost:8000/ws');
+        const { getApiBase } = await import('./apiBase');
+        expect(getApiBase()).toBe('http://localhost:8000');
+    });
+
+    it('returns empty string for invalid URL', async () => {
+        vi.stubEnv('VITE_WS_URL', 'not a url');
+        const { getApiBase } = await import('./apiBase');
+        expect(getApiBase()).toBe('');
+    });
+
+    it('caches the result after first call', async () => {
+        vi.stubEnv('VITE_WS_URL', 'ws://localhost:8000/ws');
+        const { getApiBase } = await import('./apiBase');
+        const first = getApiBase();
+        const second = getApiBase();
+        expect(first).toBe(second);
+        expect(first).toBe('http://localhost:8000');
+    });
+});
diff --git a/src/utils/relativeTime.ts b/src/utils/relativeTime.ts
index 2672652..69dded7 100644
--- a/src/utils/relativeTime.ts
+++ b/src/utils/relativeTime.ts
@@ -1,15 +1,33 @@
+import { ref } from 'vue';
+
+/**
+ * Shared reactive tick — drives all relativeTime re-renders.
+ * One setInterval for the whole app. Any computed that calls relativeTime()
+ * automatically re-evaluates every 5s because it reads `_tick.value`.
+ */
+const _tick = ref(0);
+let _started = false;
+function _ensureTick() {
+    if (_started) return;
+    _started = true;
+    setInterval(() => { _tick.value++; }, 5000);
+}
+
 /**
  * Returns a human-friendly relative time string.
- * No dependencies — pure function.
+ * Reactive — re-evaluates every 5s when used in Vue computed/template.
  */
 export function relativeTime(isoOrDate: string | Date): string {
+    _ensureTick();
+    void _tick.value; // reactive dependency
     const then = typeof isoOrDate === 'string' ? new Date(isoOrDate) : isoOrDate;
     const now = Date.now();
     const diffMs = now - then.getTime();
     if (diffMs < 0) return 'just now';
 
     const sec = Math.floor(diffMs / 1000);
-    if (sec < 60)   return 'just now';
+    if (sec < 5)    return 'just now';
+    if (sec < 60)   return `${sec}s ago`;
     const min = Math.floor(sec / 60);
     if (min < 60)   return `${min}m ago`;
     const hr = Math.floor(min / 60);
diff --git a/src/views/HomeView.vue b/src/views/HomeView.vue
index 7936440..decd2b3 100644
--- a/src/views/HomeView.vue
+++ b/src/views/HomeView.vue
@@ -2,8 +2,8 @@
     <div class="home-view">
         <WebGLBackground />
         <div class="home-card">
-            <div class="home-logo"><component :is="THEME_ICONS[theme]" class="w-12 h-12 text-accent" /></div>
-            <h1>{{ THEME_NAMES[theme] }}</h1>
+            <div class="home-logo"><component :is="brandIcon" class="w-12 h-12 text-accent" /></div>
+            <h1>{{ tenant.name }}</h1>
             <p class="home-sub">Don't Panic.</p>
             <RouterLink v-if="!isLoggedIn" to="/login" class="home-btn">Sign in →</RouterLink>
             <RouterLink v-else to="/nyx" class="home-btn">Sign in →</RouterLink>
@@ -12,9 +12,11 @@
 </template>
 
 <script setup lang="ts">
-import { THEME_ICONS, THEME_NAMES, useTheme } from '../composables/useTheme';
+import { THEME_ICONS } from '../composables/useTheme';
+import type { Theme } from '../composables/useTheme';
 import WebGLBackground from "../components/WebGLBackground.vue";
 import { auth } from "../store";
+import tenant from '../tenant';
 const { isLoggedIn } = auth;
-const { theme } = useTheme();
+const brandIcon = THEME_ICONS[tenant.themes.dark as Theme];
 </script>
diff --git a/tenants/dev/config.ts b/tenants/dev/config.ts
index a2c88f9..e0f000e 100644
--- a/tenants/dev/config.ts
+++ b/tenants/dev/config.ts
@@ -12,6 +12,10 @@ const config: TenantConfig = {
         viewer: true,
         devTools: true,
     },
+    themes: {
+        dark: 'titan',
+        bright: 'titan-bright',
+    },
 };
 
 export default config;
diff --git a/tenants/dev/theme.css b/tenants/dev/theme.css
new file mode 100644
index 0000000..6e16f51
--- /dev/null
+++ b/tenants/dev/theme.css
@@ -0,0 +1,32 @@
+/* ── titan dark: defined in base.css :root ──────────────────── */
+
+/* ── titan bright ───────────────────────────────────────────── */
+[data-theme="titan-bright"] {
+    --bg:           #f1f3f9;
+    --surface:      #e8ecf5;
+    --border:       #c8cfe0;
+    --chat-bg:      #f5f7fc;
+    --agent:        #e8ecf5;
+    --agent-border: #a5b4fc;
+    --muted:        #dde2ef;
+    --muted-text:   #6b7ba0;
+
+    --text:         #1a1f2e;
+    --text-dim:     #5a6480;
+
+    --accent:       #6366f1;
+    --user-bubble:  #dce3f5;
+    --primary:      #3b82f6;
+    --secondary:    #6366f1;
+    --success:      #22c55e;
+    --success-dim:  #4ade80;
+    --warn:         #fbbf24;
+    --error:        #f87171;
+    --focus:        #4ade80;
+
+    --bg-dim:       #e5e9f5;
+    --disabled-opacity: 0.4;
+
+    --panel-bg:     #ffffff;
+    --panel-shadow: 0 2px 12px rgba(0,0,0,0.08), 0 0 1px rgba(99,102,241,0.15);
+}
diff --git a/tenants/loop42/config.ts b/tenants/loop42/config.ts
index 781fc7f..4f98c9c 100644
--- a/tenants/loop42/config.ts
+++ b/tenants/loop42/config.ts
@@ -12,6 +12,10 @@ const config: TenantConfig = {
         viewer: false,
         devTools: false,
     },
+    themes: {
+        dark: 'loop42',
+        bright: 'loop42-bright',
+    },
 };
 
 export default config;
diff --git a/tenants/loop42/theme.css b/tenants/loop42/theme.css
new file mode 100644
index 0000000..184cd4c
--- /dev/null
+++ b/tenants/loop42/theme.css
@@ -0,0 +1,63 @@
+/* ── loop42 dark ────────────────────────────────────────────── */
+[data-theme="loop42"] {
+    --bg:           #1A212C;
+    --surface:      #222a36;
+    --border:       #1D7872;
+    --chat-bg:      #1e2630;
+    --agent:        #222a36;
+    --agent-border: #1D7872;
+    --muted:        #2a3340;
+    --muted-text:   #71B095;
+
+    --text:         #e8e6e0;
+    --text-dim:     #71B095;
+
+    --accent:       #1D7872;
+    --user-bubble:  #2a3340;
+    --primary:      #71B095;
+    --btn-bg:       #1D7872;
+    --btn-text:     #e8e6e0;
+    --btn-hover:    #71B095;
+
+    --input-bg:     #222a36;
+    --input-border: #1D7872;
+    --input-text:   #e8e6e0;
+
+    --bg-dim:       #1e2630;
+    --disabled-opacity: 0.4;
+
+    --panel-bg:     #1e2630;
+    --panel-shadow: 0 2px 12px rgba(0,0,0,0.35), 0 0 1px rgba(29,120,114,0.15);
+}
+
+/* ── loop42 bright ──────────────────────────────────────────── */
+[data-theme="loop42-bright"] {
+    --bg:           #f2f5f4;
+    --surface:      #e8eeec;
+    --border:       #b8d4d0;
+    --chat-bg:      #f6f9f8;
+    --agent:        #e8eeec;
+    --agent-border: #1D7872;
+    --muted:        #dce8e6;
+    --muted-text:   #5a8a80;
+
+    --text:         #1a2422;
+    --text-dim:     #4a7870;
+
+    --accent:       #1D7872;
+    --user-bubble:  #d8ecea;
+    --primary:      #1D7872;
+    --btn-bg:       #1D7872;
+    --btn-text:     #ffffff;
+    --btn-hover:    #71B095;
+
+    --input-bg:     #ffffff;
+    --input-border: #1D7872;
+    --input-text:   #1a2422;
+
+    --bg-dim:       #dce8e6;
+    --disabled-opacity: 0.4;
+
+    --panel-bg:     #ffffff;
+    --panel-shadow: 0 2px 12px rgba(0,0,0,0.08), 0 0 1px rgba(29,120,114,0.15);
+}
diff --git a/vite.config.ts b/vite.config.ts
index 45a047d..a84ee5b 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,3 +1,4 @@
+/// <reference types="vitest/config" />
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import tailwindcss from '@tailwindcss/vite'
@@ -8,17 +9,22 @@ export default defineConfig({
     __BUILD__: JSON.stringify(buildId),
   },
   plugins: [tailwindcss(), vue()],
+  test: {
+    environment: 'happy-dom',
+    include: ['src/**/*.test.ts'],
+    globals: true,
+  },
   server: {
     host: '0.0.0.0',
     port: 5173,
     proxy: {
       '/ws': {
-        target: 'ws://localhost:8000',
+        target: 'ws://localhost:30800',
         ws: true,
         changeOrigin: true,
       },
       '/api': {
-        target: 'http://localhost:8000',
+        target: 'http://localhost:30800',
         changeOrigin: true,
       },
     },