Align repo config with global development standards

- Add missing tsconfig strictness flags (noUncheckedIndexedAccess,
  exactOptionalPropertyTypes, noImplicitOverride,
  noPropertyAccessFromIndexSignature) and fix all resulting type errors
- Replace ESLint/Prettier with oxlint 1.48.0 and oxfmt 0.33.0
- Pin all frontend and backend dependencies to exact versions
- Pin GitHub Actions to SHA hashes with persist-credentials: false
- Fix CI Python version mismatch (3.12 -> 3.14) and ruff target-version
- Add vitest 4.0.18 with jsdom environment for frontend testing
- Add ty 0.0.17 for Python type checking (non-blocking in CI)
- Add actionlint and zizmor CI job for workflow linting and security audit
- Add Dependabot config for npm, pip, and github-actions
- Update CLAUDE.md and pre-commit hooks to reflect new tooling
- Ignore Claude Code sandbox artifacts in gitignore

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/App.tsx

@@ -42,18 +42,12 @@ function App() {
           <Route index element={<Navigate to="/admin/games" replace />} />
           <Route path="games" element={<AdminGames />} />
           <Route path="games/:gameId" element={<AdminGameDetail />} />
-          <Route
-            path="games/:gameId/routes/:routeId"
-            element={<AdminRouteDetail />}
-          />
+          <Route path="games/:gameId/routes/:routeId" element={<AdminRouteDetail />} />
           <Route path="pokemon" element={<AdminPokemon />} />
           <Route path="evolutions" element={<AdminEvolutions />} />
           <Route path="runs" element={<AdminRuns />} />
           <Route path="genlockes" element={<AdminGenlockes />} />
-          <Route
-            path="genlockes/:genlockeId"
-            element={<AdminGenlockeDetail />}
-          />
+          <Route path="genlockes/:genlockeId" element={<AdminGenlockeDetail />} />
         </Route>
       </Route>
     </Routes>