Diagnose TypeScript resolution mismatch between validate + e2e

Both CI jobs run the same `npm run build:all` against the same
lockfile, but validate consistently passes and e2e consistently
fails with TS5107 demanding `ignoreDeprecations: "6.0"` instead of
the "5.0" my locked TS 5.9.3 expects. The lockfile pins TS to
5.9.3 in exactly one place, so npm ci should produce the same
node_modules/typescript across both jobs.

Adds a diagnostic step before "Build everything" that prints:
- which tsc + npx tsc --version
- node_modules/typescript/package.json version
- TS api version

so the next run gives us the actual installed version.

Also drops `typeRoots` from tsconfig — the default behaviour (auto-
include @types/* from node_modules/@types) is what we want, and the
explicit typeRoots may have been masking a different resolution
quirk in some TS versions.

Author: pulkitpareek18

.github/workflows/ci.yml

@@ -137,6 +137,20 @@ jobs:
       - name: Install website dependencies
         run: npm --prefix website ci
 
+      - name: Diagnose TypeScript resolution
+        run: |
+          echo "=== which tsc + version ==="
+          which tsc || true
+          npx tsc --version
+          echo "=== node_modules/typescript/package.json version ==="
+          node -p "require('./node_modules/typescript/package.json').version"
+          echo "=== ignoreDeprecations valid values ==="
+          node -e "
+            const ts = require('typescript');
+            const v = ts.version;
+            console.log('TS api reports version:', v);
+          "
+
       - name: Build everything
         run: npm run build:all
 

tsconfig.json

@@ -14,8 +14,7 @@
     "declarationMap": true,
     "sourceMap": true,
     "moduleResolution": "node",
-    "ignoreDeprecations": "5.0",
-    "typeRoots": ["./node_modules/@types"]
+    "ignoreDeprecations": "5.0"
   },
   "include": ["src/**/*"],
   "exclude": ["node_modules", "dist", "tests", "dashboard"]