feat: hai board — core, dashboard, cli, engine

.gitignore

@@ -0,0 +1,24 @@
+# Dependencies
+node_modules/
+
+# Build output
+dist/
+*.tsbuildinfo
+
+# hai runtime (local board state — don't commit)
+.hai/
+
+# Taskplane runtime artifacts
+.pi/batch-state.json
+.pi/batch-history.json
+.pi/lane-state-*
+.pi/merge-result-*
+.pi/merge-request-*
+.pi/worker-conversation-*
+.pi/orch-logs/
+.pi/orch-abort-signal
+.pi/settings.json
+.worktrees/
+
+# Pi project-local packages
+.pi/npm/