20260729-fallback-architect-notice

Change under test: fallback-architect reminder never user-visible (queued path no longer transform-appends; always hidden custom message) + new visible omo-fallback-architect:notice upgrade card (display:true, details {from,to}) with a registered TUI renderer.

Commands:

• bun test packages/omo-senpi/src/components/fallback-architect/ -> 48 pass / 0 fail (RED first: 13 pass / 4 fail — queued transform + missing notice, captured before impl)
• node packages/omo-senpi/scripts/qa/fallback-architect-e2e.mjs --self-test -> PASS
• SENPI_BIN=$(command -v senpi) node packages/omo-senpi/scripts/qa/fallback-architect-e2e.mjs -> e2e-run.json: all 4 scenarios PASS (notice display:true + details in A/B, absent in C/D, reminderLeaks 0 everywhere); overall FAIL only via isolatedRealAgentDir=false caused by the developer's LIVE senpi session writing ~/.senpi/agent/settings.json (tipsHistory) at 13:06:20 during the run window — the QA sandbox itself uses isolated SENPI_CODING_AGENT_DIR + HOME. -> e2e-run-2.json: clean re-run (see file for final verdict).

Isolation: sandboxes created under mktemp roots by drive.mjs createSandbox and removed by the driver's finally-rmSync; the real ~/.senpi/agent was only ever READ for the credential digest.

Redactions: none; transcripts contain only mock-provider content.