fix(webhooks): split webhook-ingest tsconfig so Docker build has rootDir

TS 6 requires explicit rootDir when the inferred common source directory
collapses to a single subtree. In the Docker build context only src/ is
COPYed (no test/), so tsc infers rootDir=./src and refuses to emit unless
told so explicitly.

Split: tsconfig.json now only includes src/ (compilation entry), and a new
tsconfig.test.json overlays src/ + test/ + *.config.ts for tsc --noEmit.
The typecheck script points at the test config so test code keeps being
checked at PR time.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: FelixTJDietrich

server/webhook-ingest/package.json

@@ -15,7 +15,7 @@
     "format:check": "biome check --formatter-enabled=true --linter-enabled=false src test",
     "lint": "biome lint src test",
     "lint:fix": "biome lint --write src test",
-    "typecheck": "tsc --noEmit",
+    "typecheck": "tsc -p tsconfig.test.json --noEmit",
     "validate": "pnpm run typecheck && pnpm run lint && pnpm run test"
   },
   "dependencies": {

server/webhook-ingest/tsconfig.json

@@ -24,6 +24,7 @@
     "resolveJsonModule": true,
     "isolatedModules": true,
     "outDir": "./dist",
+    "rootDir": "./src",
     "declaration": true,
     "sourceMap": true,
     "types": [
@@ -32,9 +33,7 @@
     "skipLibCheck": true
   },
   "include": [
-    "src/**/*",
-    "test/**/*",
-    "*.config.ts"
+    "src/**/*"
   ],
   "exclude": [
     "node_modules",

server/webhook-ingest/tsconfig.test.json

@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "rootDir": null,
+    "noEmit": true
+  },
+  "include": [
+    "src/**/*",
+    "test/**/*",
+    "*.config.ts"
+  ]
+}