Version column in tasks table with WHERE id=? AND version=? guard.
Conflict detection in TaskBoardTab. error-classifier.ts: 6 error types
with actionable messages and retry logic. UsageMeter.svelte.
Reviewer workflow in agent-prompts.ts (8-step process), Rust auto-post
to #review-queue on task->review transition, reviewQueueDepth in
attention scoring (10pts/task cap 50), Tasks tab for reviewer in
ProjectBox with 10s queue polling. 7 vitest + 4 cargo tests.
CRITICAL: get_agents() used SELECT * positional index 7 for status,
but column 7 is system_prompt (column 8 is status). Converted all
query functions in btmsg.rs and bttask.rs to named column access.
Fixed BtmsgAgent/BtmsgMessage TypeScript interfaces to use camelCase
matching Rust serde(rename_all = camelCase). Updated CommsTab consumer.
