chore: remove unused pi web-ui package

Delete the dormant companion-os web-ui workspace and clean up the workspace, build, lint, and lockfile references that still pointed at it.

Fixes #253

Co-authored-by: Codex <noreply@openai.com>

package-lock.json

@@ -8,8 +8,7 @@
       "name": "pi",
       "version": "0.0.3",
       "workspaces": [
-        "packages/*",
-        "packages/web-ui/example"
+        "packages/*"
       ],
       "dependencies": {
         "@mariozechner/jiti": "^2.6.5",
@@ -1761,10 +1760,6 @@
       "resolved": "packages/tui",
       "link": true
     },
-    "node_modules/@mariozechner/pi-web-ui": {
-      "resolved": "packages/web-ui",
-      "link": true
-    },
     "node_modules/@mistralai/mistralai": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/@mistralai/mistralai/-/mistralai-1.14.1.tgz",
@@ -7062,10 +7057,6 @@
       "resolved": "packages/pi-teams",
       "link": true
     },
-    "node_modules/pi-web-ui-example": {
-      "resolved": "packages/web-ui/example",
-      "link": true
-    },
     "node_modules/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
@@ -9343,48 +9334,6 @@
         "type": "opencollective",
         "url": "https://opencollective.com/express"
       }
-    },
-    "packages/web-ui": {
-      "name": "@mariozechner/pi-web-ui",
-      "version": "0.56.2",
-      "license": "MIT",
-      "dependencies": {
-        "@lmstudio/sdk": "^1.5.0",
-        "@mariozechner/pi-ai": "^0.56.2",
-        "@mariozechner/pi-tui": "^0.56.2",
-        "docx-preview": "^0.3.7",
-        "jszip": "^3.10.1",
-        "lucide": "^0.544.0",
-        "ollama": "^0.6.0",
-        "pdfjs-dist": "5.4.394",
-        "xlsx": "https://cdn.sheetjs.com/xlsx-0.20.3/xlsx-0.20.3.tgz"
-      },
-      "devDependencies": {
-        "@mariozechner/mini-lit": "^0.2.0",
-        "@tailwindcss/cli": "^4.0.0-beta.14",
-        "concurrently": "^9.2.1",
-        "typescript": "^5.7.3"
-      },
-      "peerDependencies": {
-        "@mariozechner/mini-lit": "^0.2.0",
-        "lit": "^3.3.1"
-      }
-    },
-    "packages/web-ui/example": {
-      "name": "pi-web-ui-example",
-      "version": "1.44.2",
-      "dependencies": {
-        "@mariozechner/mini-lit": "^0.2.0",
-        "@mariozechner/pi-ai": "file:../../ai",
-        "@mariozechner/pi-web-ui": "file:../",
-        "@tailwindcss/vite": "^4.1.17",
-        "lit": "^3.3.1",
-        "lucide": "^0.544.0"
-      },
-      "devDependencies": {
-        "typescript": "^5.7.3",
-        "vite": "^7.1.6"
-      }
     }
   }
 }