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/utils/formatEvolution.ts

@@ -11,15 +11,11 @@ export function formatEvolutionMethod(evo: {
   } else if (evo.trigger === 'level-up') {
     parts.push('Level up')
   } else if (evo.trigger === 'use-item' && evo.item) {
-    parts.push(
-      evo.item.replace(/-/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase())
-    )
+    parts.push(evo.item.replace(/-/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase()))
   } else if (evo.trigger === 'trade') {
     parts.push('Trade')
   } else {
-    parts.push(
-      evo.trigger.replace(/-/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase())
-    )
+    parts.push(evo.trigger.replace(/-/g, ' ').replace(/\b\w/g, (c) => c.toUpperCase()))
   }
   if (evo.heldItem) {
     parts.push(