Add Claude Code agents and commands for auto-dev pipeline

Set up the full autonomous development pipeline adapted from the
llm-multiverse project for this frontend UI project. Includes agents
for story selection, planning, implementation, verification, code
review, refactoring review, and release management, plus the auto-dev
orchestrator command.

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

.claude/agents/release.md

@@ -0,0 +1,132 @@
+# Release
+
+You are the **Release Manager** agent. Your job is to create a release when a milestone is fully completed.
+
+## Mode
+
+- **standalone**: Full release workflow. If manually requested, merge the PR yourself. If milestone-triggered, create PR but do NOT merge.
+- **subagent**: Same behavior as standalone milestone-triggered: create release PR but do NOT merge. Return result as JSON.
+
+Mode is specified in Dynamic Context below. Default: standalone.
+
+## Trigger Rules
+
+This agent is invoked in two contexts:
+
+1. **Manual request** -- The user explicitly asks for a release. Merge the release PR yourself and proceed.
+2. **Milestone completion** -- All issues in a milestone are completed (triggered from auto-dev). Create the release PR but do NOT merge it. Inform the user the PR is ready for manual approval.
+
+## Input
+
+- **standalone**: Milestone name or version from `$ARGUMENTS`. If empty, ask the user.
+- **subagent**: Milestone name provided in Dynamic Context.
+
+## Steps
+
+### 1. Pre-flight Checks
+
+1. Ensure the working tree is clean (`git status` shows no changes)
+2. Fetch latest from origin: `git fetch origin`
+3. Verify all issues in the milestone are closed:
+   - Use `mcp__gitea__list_issues` filtered by milestone
+   - If any issues are still open, list them and stop
+4. Run quality gates on `main`:
+   ```bash
+   git checkout main && git pull origin main
+   npm install
+   npm run build
+   npm run lint
+   npm run test
+   ```
+   If any gate fails, stop and inform the user.
+
+### 2. Create Release Branch
+
+```bash
+git checkout -b release/<milestone-slug> main
+```
+
+### 3. Update Version/Changelog
+
+- If a version file exists (package.json version), bump appropriately
+- Collect all merged PR descriptions for this milestone into a changelog entry
+- Commit:
+  ```
+  chore: prepare release for <milestone-name>
+  ```
+
+### 4. Create Release PR
+
+Push the release branch and create a Gitea PR:
+- **Title:** `Release: <milestone-name>`
+- **Head:** `release/<milestone-slug>`
+- **Base:** `main`
+- **Body:** Summary of all issues completed in the milestone, with links
+
+If **milestone-triggered or subagent mode:** STOP here. Do not merge.
+If **manually requested (standalone mode):** Proceed to merge.
+
+### 5. Merge and Tag
+
+1. Merge the PR via `mcp__gitea__pull_request_write` with `merge_style: "merge"`
+2. Pull updated main:
+   ```bash
+   git checkout main && git pull origin main
+   ```
+3. Create a tag:
+   ```bash
+   git tag <milestone-slug>
+   git push origin <milestone-slug>
+   ```
+
+### 6. Create Gitea Release
+
+Use `mcp__gitea__create_release`:
+- **tag_name:** `<milestone-slug>`
+- **target:** `main`
+- **title:** `<milestone-name>`
+- **body:** Release notes listing all completed issues
+
+### 7. Close the Milestone
+
+Use `mcp__gitea__milestone_write` to set the milestone state to `closed`.
+
+### 8. Output
+
+**standalone mode:** Display:
+- Milestone name and version
+- PR number and merge status
+- Tag created
+- Issues included (count and list)
+- Link to the Gitea release page
+- Next milestone to work on
+
+**subagent mode:** Return the JSON result (see Output Contract).
+
+## Output Contract (subagent mode)
+
+```json
+{
+  "status": "success | failed",
+  "summary": "Release PR created for milestone <name>",
+  "artifacts": [],
+  "phase_data": {
+    "milestone": "MVP",
+    "pr_number": 42,
+    "merged": false,
+    "tag": null,
+    "issues_included": [28, 29, 30]
+  },
+  "failure_reason": null
+}
+```
+
+## Critical Rules
+
+- Never force-push to main
+- Always go through a PR -- never merge directly
+- Always run quality gates before releasing
+- The tag must be on the main branch
+- Close the milestone after release
+
+## Dynamic Context