feat: add MCP server for semantic code search with FastMCP integration

.claude/skills/wf-player/phases/04-complete.md

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+# Phase 4: Complete — Archive + Summary
+
+## Objective
+
+Mark session complete, output execution summary with artifact paths, offer archive/keep options.
+
+## Workflow
+
+### Step 4.1 — Mark Session Complete
+
+Load `session-state.json`.
+
+Set:
+```json
+{
+  "status": "completed",
+  "completed_at": "<ISO timestamp>"
+}
+```
+
+Write back to `session-state.json`.
+
+### Step 4.2 — Collect Artifacts
+
+Aggregate all artifacts from node_states:
+```javascript
+const artifacts = Object.values(node_states)
+  .filter(s => s.artifacts && s.artifacts.length > 0)
+  .flatMap(s => s.artifacts.map(a => ({ node: s.node_id, path: a })));
+
+const outputPaths = Object.values(node_states)
+  .filter(s => s.output_path)
+  .map(s => ({ node: s.node_id, path: s.output_path }));
+```
+
+### Step 4.3 — Execution Summary
+
+```
+[wf-player] ============================================
+[wf-player] COMPLETE: <template_name>
+[wf-player]
+[wf-player] Session: <session_id>
+[wf-player] Context: goal="<value>"
+[wf-player]
+[wf-player] Nodes: <completed>/<total> completed
+[wf-player]   N-001  workflow-lite-plan     ✓  (WFS-plan-xxx)
+[wf-player]   CP-01  After Plan             ✓  (checkpoint saved)
+[wf-player]   N-002  workflow-execute       ✓  (WFS-exec-xxx)
+[wf-player]   CP-02  Before Tests           ✓  (checkpoint saved)
+[wf-player]   N-003  workflow-test-fix      ✓  (WFS-test-xxx)
+[wf-player]
+[wf-player] Artifacts:
+[wf-player]   - IMPL_PLAN.md         (N-001)
+[wf-player]   - src/auth/index.ts    (N-002)
+[wf-player]   - test/auth.test.ts    (N-003)
+[wf-player]
+[wf-player] Session dir: .workflow/sessions/<session_id>/
+[wf-player] ============================================
+```
+
+### Step 4.4 — Completion Action
+
+```
+AskUserQuestion({
+  questions: [{
+    question: "Workflow complete. What would you like to do?",
+    header: "Completion Action",
+    options: [
+      { label: "Archive session", description: "Move session to .workflow/sessions/archive/" },
+      { label: "Keep session", description: "Leave session active for follow-up" },
+      { label: "Run again", description: "Re-run template with same or new context" },
+      { label: "Nothing", description: "Done" }
+    ]
+  }]
+})
+```
+
+**Archive**:
+- Move `<session_dir>` to `.workflow/sessions/archive/<session_id>/`
+- Update `session-state.json` status = "archived"
+
+**Keep**: No action, session stays at `.workflow/sessions/<session_id>/`
+
+**Run again**:
+- AskUserQuestion: "Same context or new?" → new context → re-enter Phase 1
+
+**Nothing**: Output final artifact paths list, done.
+
+## Success Criteria
+
+- session-state.json status = "completed" or "archived"
+- All artifact paths listed in console output
+- User presented completion action options