Add taskboard CLI tool for kanban orchestration (Phase 1 of plan 13)

tools/taskboard/SKILL.md

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+# Taskboard — Kanban Task Management
+
+Central orchestration tool for Atomizer HQ. All agents interact with the shared taskboard.
+
+## Quick Reference
+
+```bash
+TB="/home/papa/atomizer/workspaces/shared/skills/taskboard/taskboard.sh"
+
+# List your tasks
+CALLER=my-agent-name bash "$TB" list --agent my-agent-name
+
+# List by status or project
+bash "$TB" list --status in-progress
+bash "$TB" list --project gigabit-m2
+
+# View task details
+bash "$TB" view TASK-001
+
+# Update task status (any agent can update their own tasks)
+CALLER=my-agent-name bash "$TB" update TASK-001 --status in-progress --note "Started research"
+CALLER=my-agent-name bash "$TB" update TASK-001 --status review --note "Draft posted to #technical"
+
+# Kanban summary (counts per column)
+bash "$TB" summary
+
+# Kanban snapshot (markdown for Discord)
+bash "$TB" snapshot
+```
+
+## Manager-Only Commands
+
+```bash
+# Create a task
+CALLER=manager bash "$TB" create \
+  --title "Research CCZ thermal properties" \
+  --assignee webster \
+  --priority high \
+  --project gigabit-m2 \
+  --description "Full thermal comparison: CTE, conductivity for CCZ HS vs Zerodur" \
+  --deliverable-type analysis \
+  --deliverable-channel technical
+
+# Complete a task
+CALLER=manager bash "$TB" complete TASK-001 --note "Deliverable accepted"
+
+# Cancel a task
+CALLER=manager bash "$TB" cancel TASK-002 --reason "Superseded by new approach"
+```
+
+## Status Flow
+
+```
+backlog → todo → in-progress → review → done
+                      ↓
+                  cancelled
+```
+
+## For Executor Agents (non-Manager)
+
+On every session start:
+1. Check your tasks: `CALLER=<you> bash "$TB" list --agent <you>`
+2. If you have `todo` tasks: update to `in-progress` and start working
+3. When work is done: update to `review` and post deliverable to the target Discord channel
+4. Append progress to `shared/project_log.md`
+
+## Important
+
+- **taskboard.json is the single source of truth** — never edit it directly
+- **Only Manager creates/completes/cancels tasks** — other agents update status
+- **All writes are atomic** (tmp file + mv) with flock locking
+- **Set CALLER env var** so your name appears in logs and notes