feat: add Plan dispatch tier — full review gauntlet for Claude Code project planning

New gstack-plan template chains /office-hours → /autoplan (CEO + eng + design + DX
+ codex adversarial), saves the reviewed plan, and reports back to the orchestrator.
The orchestrator persists the plan link to its own memory store. 5 tiers now:
Simple, Medium, Heavy, Full, Plan.

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

scripts/gen-skill-docs.ts

@@ -580,6 +580,30 @@ Do not ask for human input until the PR is ready for review.
 `;
       fs.writeFileSync(path.join(openclawDir, 'gstack-full-CLAUDE.md'), gstackFull);
       console.log('GENERATED: openclaw/gstack-full-CLAUDE.md');
+
+      const gstackPlan = `# gstack-plan: Full Review Gauntlet
+
+Injected by the orchestrator when the user wants to plan a Claude Code project.
+Append to existing CLAUDE.md.
+
+## Planning Pipeline
+1. Read CLAUDE.md and understand the project context.
+2. Run /office-hours to produce a design doc (problem statement, premises, alternatives).
+3. Run /autoplan to review the design (CEO + eng + design + DX reviews + codex adversarial).
+4. Save the final reviewed plan to a file the orchestrator can reference later.
+   Write it to: plans/<project-slug>-plan-<date>.md in the current repo.
+   Include the design doc, all review decisions, and the implementation sequence.
+5. Report back to the orchestrator:
+   - Plan file path
+   - One-paragraph summary of what was designed and the key decisions
+   - List of accepted scope expansions (if any)
+   - Recommended next step (usually: spawn a new session with gstack-full to implement)
+
+Do not implement anything. This is planning only.
+The orchestrator will persist the plan link to its own memory/knowledge store.
+`;
+      fs.writeFileSync(path.join(openclawDir, 'gstack-plan-CLAUDE.md'), gstackPlan);
+      console.log('GENERATED: openclaw/gstack-plan-CLAUDE.md');
     }
 
     if (DRY_RUN && hasChanges) {