chore: set parallel agent dispatch and tracer ownership

docs/dispatch/agent-a-registry-api.md

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+# Agent A Dispatch: Registry/API
+
+## Branch + Worktree
+- Branch: `feat/registry-api`
+- Worktree: `C:\Users\Zenchant\codex\beadboard\.worktrees\agent-a`
+
+## Beads
+- `bb-6aj.1` (in_progress, assignee `agent-a`)
+- `bb-6aj.2` (open, assignee `agent-a`) after `bb-6aj.1` closes
+
+## Scope
+- Implement registry persistence at `%USERPROFILE%\.beadboard\projects.json`
+- Implement projects API route for add/remove/list
+- Windows-safe normalization only
+
+## File Ownership
+- `src/lib/registry.ts`
+- `src/app/api/projects/route.ts`
+- `tests/lib/registry.test.ts`
+- `tests/api/projects-route.test.ts`
+
+## Hard Constraints
+- Never write directly to `.beads/issues.jsonl`
+- No Unix-only assumptions
+- Validate and normalize project paths consistently
+
+## Verification
+```powershell
+npm run typecheck
+npm run test
+```
+

docs/dispatch/agent-b-kanban.md

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+# Agent B Dispatch: Tracer Bullet 1 Kanban
+
+## Branch + Worktree
+- Branch: `feat/kanban-baseline`
+- Worktree: `C:\Users\Zenchant\codex\beadboard\.worktrees\agent-b`
+
+## Beads
+- `bb-trz.1` (in_progress, assignee `agent-b`)
+- `bb-trz.2` (in_progress, assignee `agent-b`)
+- `bb-trz.3` (in_progress, assignee `agent-b`)
+- `bb-trz.4` (in_progress, assignee `agent-b`)
+
+## Scope
+- Deliver tracer bullet 1 baseline:
+  - status columns (`open`, `in_progress`, `blocked`, `deferred`, `closed`)
+  - bead cards (priority/type/labels/assignee/dependency count)
+  - detail panel
+  - search/filter/stats controls
+- Use real read path (`.beads/issues.jsonl`) from server layer, not demo-only data
+
+## File Ownership
+- `src/app/page.tsx`
+- `src/components/kanban/*`
+- `src/components/shared/*`
+- `src/lib/kanban.ts`
+- `src/lib/read-issues.ts`
+- `tests/lib/kanban.test.ts`
+
+## Hard Constraints
+- Read boundary only for this phase
+- No write path to JSONL
+- Keep Windows-safe path handling in read layer
+
+## Verification
+```powershell
+npm run typecheck
+npm run test
+npm run dev
+```
+

docs/dispatch/agent-c-scanner.md

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+# Agent C Dispatch: Scanner
+
+## Branch + Worktree
+- Branch: `feat/scanner`
+- Worktree: `C:\Users\Zenchant\codex\beadboard\.worktrees\agent-c`
+
+## Beads
+- `bb-6aj.3` (open, assignee `agent-c`) start only after `bb-6aj.1` closure
+- `bb-6aj.3.1` optional follow-up
+
+## Scope
+- Scanner rooted to `%USERPROFILE%` by default
+- Bounded recursion and ignore patterns
+- Full-drive (`C:\`, `D:\`) scan must be explicit opt-in only
+
+## File Ownership
+- `src/lib/scanner.ts`
+- `src/app/api/scan/route.ts` (if needed)
+- `tests/lib/scanner.test.ts`
+
+## Hard Constraints
+- No default full-drive crawl
+- No Unix-only shell assumptions
+- Keep path normalization consistent
+
+## Verification
+```powershell
+npm run typecheck
+npm run test
+```
+

docs/dispatch/launch-order.md

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+# Parallel Launch Order
+
+## 1) Start Agent A + Agent B in Parallel
+
+Terminal A:
+```powershell
+cd C:\Users\Zenchant\codex\beadboard\.worktrees\agent-a
+```
+Use prompt: `docs/dispatch/agent-a-registry-api.md`
+
+Terminal B:
+```powershell
+cd C:\Users\Zenchant\codex\beadboard\.worktrees\agent-b
+```
+Use prompt: `docs/dispatch/agent-b-kanban.md`
+
+## 2) Start Agent C After Registry Persistence Completes
+
+Terminal C:
+```powershell
+cd C:\Users\Zenchant\codex\beadboard\.worktrees\agent-c
+```
+Use prompt: `docs/dispatch/agent-c-scanner.md`
+
+## 3) Integration Gate
+
+From root `C:\Users\Zenchant\codex\beadboard`:
+```powershell
+npm run typecheck
+npm run test
+```
+