chore: remove legacy app and its tooling

CLAUDE.md

@@ -22,7 +22,7 @@ ObdGraphsLogViewer (aka "MyGiulia Online Log Analyzer") is a browser-based telem
 
 It is deployed as a static site to GitHub Pages (https://my-giulia.com/) — web-only. There is no Electron/desktop build (that was dropped during the Angular rewrite; do not resurrect `main.js`/`electron-builder`-style tooling without checking with the user first).
 
-The app is a **standalone Angular application** (Angular 21, `bootstrapApplication`, no NgModules). It is a from-scratch rewrite of a prior plain-ES-modules app, which is preserved untouched under `legacy/` for reference — `legacy/` has its own `vite.config.mjs`/`jest.config.js`/`package.json`-scripts (`legacy:dev`, `legacy:test`, `legacy:test:coverage`) and is excluded from ESLint/the Angular build. Don't edit `legacy/` except to consult it as the behavioral spec when porting a not-yet-ported feature.
+The app is a **standalone Angular application** (Angular 21, `bootstrapApplication`, no NgModules). It is a from-scratch rewrite of a prior plain-ES-modules app that used to live under `legacy/`; that directory (along with its Vite/Jest/stylelint tooling and the `legacy:*` npm scripts) has been deleted now that the port is complete. If you ever need the old behavioral spec, read it out of git history (`git log -- legacy/`), don't restore the directory.
 
 ## Related repos
 
@@ -37,12 +37,8 @@ npm run watch             # ng build --watch --configuration development
 
 npm test                  # ng test (Vitest under the Angular builder)
 
-npx eslint src --ext .ts  # Lint TS (CI runs this; legacy/**/*.js has its own looser block in eslint.config.mjs)
+npx eslint src --ext .ts  # Lint TS (CI runs this)
 npx prettier --check .    # Formatting check (npm run format to auto-fix)
-
-npm run legacy:dev            # Vite dev server for the old legacy/ app, for behavioral reference only
-npm run legacy:test           # Jest tests for legacy/
-npm run legacy:test:coverage  # Jest coverage for legacy/
 ```
 
 To run one test by name: `npx ng test --watch=false -- -t "<test name pattern>"`.
@@ -73,4 +69,4 @@ CI (`.github/workflows/static.yml`) runs, in order: ESLint → Prettier check 
 
 **Build output obfuscation**: `npm run build`'s `postbuild` hook runs `scripts/obfuscate.js`, which obfuscates every `.js` file in `dist/` in place with `javascript-obfuscator` (identifier renaming, base64 string-array encoding, etc. — config in `scripts/obfuscator-config.js`) and re-attaches the AGPL license banner esbuild strips, mirroring hextune's `tuning-tools/webapp/scripts/obfuscate.js`/`obfuscator-config.js`. It skips itself when `.map` files are present (a development build). Unlike hextune, this app has no gated/paywalled feature chunks, so there's no `gate-chunks.js` counterpart here.
 
-**Porting-in-progress convention**: several files carry JSDoc comments explicitly noting where the Angular port deliberately deviates from `legacy/` behavior (e.g. `src/app/app.ts`'s routing, the version-badge note above). When you spot one of these, treat it as the source of truth over what `legacy/` does — read it before "fixing" an apparent behavioral mismatch.
+**Porting convention**: many files carry JSDoc comments naming the `legacy/src/*.js` module they were ported from, several of which explicitly note where the Angular port deliberately deviates from the old behavior (e.g. `src/app/app.ts`'s routing, the version-badge note above). The `legacy/` directory itself is gone, so these are historical breadcrumbs only — treat the comment as the source of truth and don't "fix" the code to match a legacy file that no longer exists in the tree.

eslint.config.mjs

@@ -1,5 +1,4 @@
 // eslint.config.mjs
-import js from '@eslint/js';
 import globals from 'globals';
 import tseslint from 'typescript-eslint';
 
@@ -16,46 +15,6 @@ export default [
       'src/app/core/version.generated.ts',
     ],
   },
-  {
-    files: ['legacy/**/*.js'],
-    ...js.configs.recommended,
-  },
-  {
-    files: ['legacy/**/*.js'],
-    languageOptions: {
-      ecmaVersion: 2022,
-      sourceType: 'module',
-      globals: {
-        ...globals.browser,
-        gapi: 'readonly',
-        google: 'readonly',
-      },
-    },
-    rules: {
-      // You can adjust these based on your preference
-      'no-unused-vars': ['warn', { argsIgnorePattern: '^_' }], // Allows variables starting with _
-      'no-empty': ['error', { allowEmptyCatch: true }], // Allows empty catch blocks
-      'no-console': 'off', // Useful for node scripts
-    },
-  },
-  {
-    files: ['legacy/**/main.js'],
-    languageOptions: {
-      globals: {
-        ...globals.node, // This defines require, __dirname, and process
-      },
-    },
-  },
-  {
-    files: ['legacy/**/*.test.js', 'legacy/**/__tests__/**'],
-    languageOptions: {
-      globals: {
-        ...globals.browser,
-        ...globals.node,
-        ...globals.jest,
-      },
-    },
-  },
   ...tseslint.configs.recommended.map((config) => ({
     ...config,
     files: ['src/**/*.ts'],