chore: consolidate plugin for sharing

- Add .gitignore (ignore .archeflow/ runtime state)
- Move custom archetype examples from .archeflow/ to examples/
- Remove onboarding skill (covered by using-archeflow + README)
- Remove internal planning doc
- Clean roadmap (remove tool.archeflow references)
- Simplify session-start hook config
- Polish README for external users

docs/roadmap.md

@@ -10,33 +10,23 @@
 - [x] Orchestration metrics (timing, agent count, findings)
 - [x] Autonomous mode integrated into orchestration flow
 - [x] Plugin consolidation (single `archeflow/` directory)
+- [x] Workflow intelligence (conditional escalation, fast-path, confidence triggers)
+- [x] Quality loop (self-review, convergence detection, dedup, completion promises)
+- [x] Parallel teams, auto-resume, budget scheduling
+- [x] Extensibility (archetype composition, team presets, hook points, workflow templates)
+- [x] Mini-reflect for non-ArcheFlow changes
 
-## Future Features
+## Future
 
-### Web Dashboard
-Real-time orchestration visualization via SSE/WebSocket. Infrastructure exists in `tool.archeflow/packages/web/` (routes, SSE, WebSocket, conflict resolution UI). Needs frontend implementation and connection to event store.
-
-**Value:** Visual monitoring of long/overnight orchestrations, conflict resolution UI.
-**Cost:** Medium — frontend work, hosting. Low incremental token cost.
-
-### A2A Protocol (Agent-to-Agent)
-Direct inter-agent negotiation during Check phase. Schemas defined in `tool.archeflow/packages/core/`. Currently agents communicate only through artifacts (files) — A2A would allow real-time back-and-forth (e.g., Guardian asking Maker to clarify a code choice before issuing verdict).
-
-**Value:** Fewer full cycles needed — issues resolved within a phase.
-**Cost:** High complexity. Risk of increased token usage if negotiations run long. Needs strict turn limits.
-
-### GitHub Action Integration
-CI-triggered orchestrations for automated PR review. Package exists at `tool.archeflow/packages/action/` with minimal implementation.
-
-**Value:** Automated quality gates on every PR without manual orchestration.
-**Cost:** Low implementation effort, but ongoing CI minutes cost. Best for high-value repos.
+| Feature | Value | Effort | Notes |
+|---------|-------|--------|-------|
+| A2A Protocol | Fewer cycles via in-phase negotiation | High | Needs strict turn limits |
+| GitHub Action | Automated PR review via CI | Low | CI minutes cost |
+| Web Dashboard | Real-time orchestration visualization | Medium | SSE/WebSocket frontend |
 
 ## Version History
 
-Maintainers should update this table when significant features ship or major improvements are completed. Reverse chronological order (latest first).
-
 | Date | Changes |
 |------|---------|
-| 2026-04-03 | 25-feature release — workflow intelligence (conditional escalation, fast-path, confidence triggers), quality loop (self-review, convergence detection, dedup, completion promises, post-merge verification), parallel teams, auto-resume, budget scheduling, DX (progress indicators, dry-run, status/history commands, onboarding), extensibility (archetype composition, team presets, hook points, workflow templates, reviewer profiles, explorer cache, learning from history), Ralph Loop integration (mini-reflect, alternatives, structured confidence) |
-| 2026-04-03 | Core improvements — cross-cycle feedback loop, attention filter enforcement, shadow detection heuristics, orchestration metrics, autonomous mode wiring, plugin consolidation, emoji avatars for archetypes |
-| 2026-04-03 | Initial roadmap created with completed features and future backlog |
+| 2026-04-03 | v0.2 — Plugin consolidation, shareable structure, examples |
+| 2026-04-03 | v0.1 — Full feature set: 7 archetypes, 10 skills, PDCA workflows, shadow detection, autonomous mode, extensibility |