feat: add interactive setup wizard with API validation and mismatch detection

Major improvements to plugin setup experience:

Setup Commands:
- Redesign /initial-setup as interactive wizard (MCP + system + project config)
- Add /project-init for quick project-only setup
- Add /project-sync for handling repository moves/renames
- Add Gitea API validation to auto-fill org/repo when verified

Configuration Changes:
- Move GITEA_ORG from system to project level (supports multi-org users)
- System config now only contains GITEA_URL and GITEA_TOKEN
- Project .env now contains GITEA_ORG and GITEA_REPO

Automation:
- Add SessionStart hook for projman and pr-review
- Automatically detects git remote vs .env mismatch
- Warns user to run /project-sync when mismatch found

Documentation:
- Unify configuration docs (remove duplicate in plugins/projman)
- Add flow diagrams to CONFIGURATION.md
- Add setup script review guidance to UPDATING.md
- Update COMMANDS-CHEATSHEET.md with new commands and hooks

Files added:
- plugins/projman/commands/project-init.md
- plugins/projman/commands/project-sync.md
- plugins/projman/hooks/hooks.json
- plugins/pr-review/commands/initial-setup.md
- plugins/pr-review/commands/project-init.md
- plugins/pr-review/commands/project-sync.md
- plugins/pr-review/hooks/hooks.json
- plugins/cmdb-assistant/commands/initial-setup.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/pr-review/commands/project-sync.md

@@ -0,0 +1,93 @@
+---
+description: Sync project configuration with current git remote - use after changing repository location
+---
+
+# Project Sync (PR Review)
+
+Updates project configuration when the git remote URL has changed.
+
+**Use this when:**
+- Repository was moved to a different organization
+- Repository was renamed
+- Git remote URL changed
+- SessionStart hook detected a mismatch
+
+---
+
+## Step 1: Verify System Configuration
+
+```bash
+cat ~/.config/claude/gitea.env 2>/dev/null | grep -v "^#" | grep -v "PASTE_YOUR" | grep "GITEA_TOKEN=" && echo "SYSTEM_OK" || echo "SYSTEM_MISSING"
+```
+
+**If SYSTEM_MISSING:** Run `/initial-setup` first.
+
+---
+
+## Step 2: Read Current .env
+
+```bash
+cat .env 2>/dev/null
+```
+
+Extract `GITEA_ORG` and `GITEA_REPO` values.
+
+**If missing:** Redirect to `/project-init`.
+
+---
+
+## Step 3: Detect Git Remote
+
+```bash
+git remote get-url origin 2>/dev/null
+```
+
+Extract organization and repository from URL.
+
+---
+
+## Step 4: Compare Values
+
+| Scenario | Action |
+|----------|--------|
+| **Match** | "Configuration in sync" - exit |
+| **Mismatch** | Show diff, proceed to validation |
+
+---
+
+## Step 5: Validate via Gitea API
+
+```bash
+source ~/.config/claude/gitea.env
+curl -s -o /dev/null -w "%{http_code}" -H "Authorization: token $GITEA_TOKEN" "$GITEA_URL/api/v1/repos/<NEW_ORG>/<NEW_REPO>"
+```
+
+| Code | Action |
+|------|--------|
+| **200** | Verified - proceed to update |
+| **404** | Not found - ask to confirm |
+| **401/403** | Permission issue - warn |
+
+---
+
+## Step 6: Confirm and Update
+
+Use AskUserQuestion to confirm, then update .env:
+
+```bash
+sed -i 's/^GITEA_ORG=.*/GITEA_ORG=<NEW_ORG>/' .env
+sed -i 's/^GITEA_REPO=.*/GITEA_REPO=<NEW_REPO>/' .env
+```
+
+---
+
+## Step 7: Confirm Success
+
+```
+╔══════════════════════════════════════════════════════════════╗
+║              CONFIGURATION UPDATED                           ║
+╠══════════════════════════════════════════════════════════════╣
+║ Organization:  <NEW_ORG>                                     ║
+║ Repository:    <NEW_REPO>                                    ║
+╚══════════════════════════════════════════════════════════════╝
+```