feat: monorepo consolidation — forge pipeline, MACP protocol, framework plugin, profiles/guides/skills

Work packages completed:
- WP1: packages/forge — pipeline runner, stage adapter, board tasks, brief classifier,
  persona loader with project-level overrides. 89 tests, 95.62% coverage.
- WP2: packages/macp — credential resolver, gate runner, event emitter, protocol types.
  65 tests, 96.24% coverage. Full Python-to-TS port preserving all behavior.
- WP3: plugins/mosaic-framework — OC rails injection plugin (before_agent_start +
  subagent_spawning hooks for Mosaic contract enforcement).
- WP4: profiles/ (domains, tech-stacks, workflows), guides/ (17 docs),
  skills/ (5 universal skills), forge pipeline assets (48 markdown files).

Board deliberation: docs/reviews/consolidation-board-memo.md
Brief: briefs/monorepo-consolidation.md

Consolidates mosaic/stack (forge, MACP, bootstrap framework) into mosaic/mosaic-stack.
154 new tests total. Zero Python — all TypeScript/ESM.

skills/macp/SKILL.md

@@ -0,0 +1,47 @@
+---
+name: macp
+description: Manage MACP tasks — submit, check status, view history, and drain queues. Use when orchestrating coding tasks via the Mosaic Agent Coordination Protocol.
+---
+
+# macp
+
+MACP task management via the mosaic CLI.
+
+## Setup
+
+Ensure PATH includes mosaic bin:
+
+```bash
+export PATH="$HOME/.config/mosaic/bin:$PATH"
+```
+
+## Commands
+
+| Command                                                                       | Purpose                                                        |
+| ----------------------------------------------------------------------------- | -------------------------------------------------------------- |
+| `mosaic macp status`                                                          | Show queue counts (pending/running/completed/failed/escalated) |
+| `mosaic macp submit --task-id ID --title "..." --type coding --command "..."` | Submit a task                                                  |
+| `mosaic macp history --task-id ID`                                            | Show event history for a task                                  |
+| `mosaic macp drain`                                                           | Run all pending tasks sequentially                             |
+| `mosaic macp watch --once`                                                    | Poll events once                                               |
+
+## Common Workflows
+
+**Check what's in the queue:**
+
+```bash
+export PATH="$HOME/.config/mosaic/bin:$PATH"
+mosaic macp status
+```
+
+**Submit a coding task:**
+
+```bash
+mosaic macp submit --task-id TASK-001 --title "Fix auth bug" --type coding --command "echo done"
+```
+
+**View task history:**
+
+```bash
+mosaic macp history --task-id TASK-001
+```