feat: apply Pattern 10 to all team skills — @ strong refs + workspace resolution

- SKILL.md: coordinator entry uses `@roles/coordinator/role.md` strong reference
- coordinator/role.md: command delegations use `@commands/xxx.md` prefix
- coordinator Phase 2: resolve project_root + skill_root via `Bash pwd` before TeamCreate
- Worker Spawn Template: role_spec uses absolute path from session skill_root
- skills_lib/team-skill-designer: document Pattern 10 + add quality checks

Covers 17 team skills: team-lifecycle-v4, team-frontend, team-ultra-analyze,
team-ux-improve, team-arch-opt, team-brainstorm, team-review, team-uidesign,
team-issue, team-iterdev, team-perf-opt, team-planex, team-quality-assurance,
team-testing, team-tech-debt, team-coordinate, team-roadmap-dev, team-frontend-debug

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

.claude/skills/team-planex/SKILL.md

@@ -43,7 +43,7 @@ Skill(skill="team-planex", args="task description")
 
 Parse `$ARGUMENTS`:
 - Has `--role <name>` → Read `roles/<name>/role.md`, execute Phase 2-4
-- No `--role` → Read `roles/coordinator/role.md`, execute entry router
+- No `--role` → `@roles/coordinator/role.md`, execute entry router
 
 ## Shared Constants
 
@@ -65,7 +65,7 @@ Agent({
   run_in_background: true,
   prompt: `## Role Assignment
 role: <role>
-role_spec: ~  or <project>/.claude/skills/team-planex/roles/<role>/role.md
+role_spec: <skill_root>/roles/<role>/role.md
 session: <session-folder>
 session_id: <session-id>
 team_name: planex
@@ -73,7 +73,7 @@ requirement: <task-description>
 inner_loop: <true|false>
 execution_method: <codex|gemini>
 
-Read role_spec file to load Phase 2-4 domain instructions.
+Read role_spec file (@<skill_root>/roles/<role>/role.md) to load Phase 2-4 domain instructions.
 Execute built-in Phase 1 (task discovery) -> role Phase 2-4 -> built-in Phase 5 (report).`
 })
 ```

.claude/skills/team-planex/roles/coordinator/role.md

@@ -40,7 +40,7 @@ When coordinator needs to execute a command:
 | Interrupted session | Active/paused session exists in `.workflow/.team/PEX-*` | -> Phase 0 |
 | New session | None of above | -> Phase 1 |
 
-For callback/check/resume: load `commands/monitor.md` and execute the appropriate handler, then STOP.
+For callback/check/resume: load `@commands/monitor.md` and execute the appropriate handler, then STOP.
 
 ### handleAdd
 
@@ -67,7 +67,7 @@ For callback/check/resume: load `commands/monitor.md` and execute the appropriat
 
 TEXT-LEVEL ONLY. No source code reading.
 
-1. Delegate to commands/analyze.md -> produces task-analysis.json
+1. Delegate to @commands/analyze.md -> produces task-analysis.json
 2. Parse arguments: Extract input type (Issue IDs / --text / --plan) and optional flags (--exec, -y)
 3. Determine execution method (see specs/pipelines.md Selection Decision Table):
    - Explicit `--exec` flag -> use specified method
@@ -78,12 +78,15 @@ TEXT-LEVEL ONLY. No source code reading.
 
 ## Phase 2: Create Team + Initialize Session
 
-1. Generate session ID: `PEX-<slug>-<date>`
-2. Create session folder: `.workflow/.team/<session-id>/`
-3. Create subdirectories: `artifacts/solutions/`, `wisdom/`
-4. Call `TeamCreate` with team name (default: "planex")
-5. Initialize wisdom files (learnings.md, decisions.md, conventions.md, issues.md)
-6. Initialize meta.json with pipeline metadata:
+1. Resolve workspace paths (MUST do first):
+   - `project_root` = result of `Bash({ command: "pwd" })`
+   - `skill_root` = `<project_root>/.claude/skills/team-planex`
+2. Generate session ID: `PEX-<slug>-<date>`
+3. Create session folder: `.workflow/.team/<session-id>/`
+4. Create subdirectories: `artifacts/solutions/`, `wisdom/`
+5. Call `TeamCreate` with team name (default: "planex")
+6. Initialize wisdom files (learnings.md, decisions.md, conventions.md, issues.md)
+7. Initialize meta.json with pipeline metadata:
 ```typescript
 mcp__ccw-tools__team_msg({
   operation: "log", session_id: "<id>", from: "coordinator",
@@ -101,14 +104,14 @@ mcp__ccw-tools__team_msg({
 
 ## Phase 3: Create Task Chain
 
-Delegate to `commands/dispatch.md`:
+Delegate to `@commands/dispatch.md`:
 1. Read `roles/coordinator/commands/dispatch.md`
 2. Execute its workflow to create PLAN-001 task
 3. PLAN-001 contains input info + execution method in description
 
 ## Phase 4: Spawn-and-Stop
 
-1. Load `commands/monitor.md`
+1. Load `@commands/monitor.md`
 2. Execute `handleSpawnNext` to find ready tasks and spawn planner worker
 3. Output status summary
 4. STOP (idle, wait for worker callback)