VS Code CMake Helper: first implementation

CMake the way CLion does it (profiles and presets, targets, run and debug
configurations, CTest), moved out of personal-assistant's cmake-extension
and renamed from CMake Targets.

- Gitea Actions: typecheck, package the .vsix, release it on a v* tag
- Updates: the latest Gitea release is looked at every 10 minutes and
  offered for install; a private repository's token in the secret storage
- cmakeHelper.toolbar: the toolbar in the status bar, the editors' title,
  or VS Code's title bar (workbench.html patched, offered again after
  VS Code or extension updates)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tsconfig.json

@@ -0,0 +1,17 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022"],
+    "module": "commonjs",
+    "types": ["node"],
+    "rootDir": "src",
+    "outDir": "out",
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "noImplicitOverride": true,
+    "skipLibCheck": true,
+    "sourceMap": true,
+    "forceConsistentCasingInFileNames": true
+  },
+  "include": ["src/**/*.ts"]
+}