add .claude config folder with Claude-equivalent agent and hook settings

Mirrors .cursor and .codex structure with Claude model assignments:
- haiku for lighter tasks (translator, browser-check, profiler)
- sonnet for standard tasks (code-quality, plan-implementer, etc.)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/commit/SKILL.md

@@ -0,0 +1,57 @@
+---
+name: commit
+description: Commit current work by reviewing diffs, splitting into logical commits, and writing standardized messages. Use when the user says "commit", "commit this", "commit current work", or asks to create a git commit.
+disable-model-invocation: true
+---
+
+# Commit Current Work
+
+## Workflow
+
+1. **Review all uncommitted changes**
+
+   ```bash
+   git status
+   git diff
+   git diff --cached
+   ```
+
+   Read every changed file's diff to understand the full scope of changes.
+
+2. **Group changes into logical commits**
+
+   If diffs are unrelated, split into multiple commits. Each commit should cover one logical unit of work.
+
+   Example — two unrelated changes in the working tree:
+   - Modified `src/components/reply-modal.tsx` (UI fix)
+   - Modified `src/stores/use-settings-store.ts` (new setting)
+
+   These should be two separate commits, not one.
+
+3. **Stage and commit each group**
+
+   For each logical group:
+   ```bash
+   git add <relevant files>
+   git commit -m "title here"
+   ```
+
+4. **Display the commit title to the user** wrapped in backticks (inline code).
+
+## Commit Message Rules
+
+- **Title format:** Conventional Commits with a **required scope**. The scope should be a short, human-readable name for the area of the codebase affected.
+
+  | Pattern | Example |
+  |---------|---------|
+  | `type(scope): description` | `feat(reply modal): add textarea` |
+
+- **Never omit the scope.** `feat: add textarea` is wrong. `feat(reply modal): add textarea` is correct.
+- **Keep titles short.** If more context is needed, add a commit body — but don't repeat the title.
+- **Use `perf:` for performance optimizations**, not `fix:`.
+
+## Constraints
+
+- Only commit when instructed. Do not commit subsequent changes unless explicitly told to.
+- Never push — only commit locally.
+- Never amend commits that have been pushed to a remote.