Add manual testing findings (2026-03-29)

Add a consolidated manual-testing report and surface it in STATUS. Creates docs/analysis/2026-03-29_manual_testing_consolidated_findings.md with detailed findings (18 bugs, 8 design observations) and highlights two P0 blockers (#508: queue data isolation, #509: board auto-switching). Updates docs/STATUS.md to reference the new report, track related issues, and warn that external user onboarding should be blocked until #508 is resolved.

Author: Chris0Jeky

docs/STATUS.md

@@ -36,6 +36,7 @@ Current constraints are mostly hardening and consistency:
 - cold first-run now has launch-criteria proofing beyond route teaching; guided `Home`, durable workspace modes, review-first automation routing, the recoverable `Today` onboarding path, board-centered review/capture handoff, key-route contextual help, and the novice-first docs/help-center stack (root entry docs, chaptered manual, and page-level help/workflow guides) are now shipped, and the dedicated first-run smoke plus launch-criteria guardrail is delivered in `#328`
 - Saul-facing demo reconciliation is now explicit: the core `Home -> Inbox/Capture -> Review -> Board` proof is shipped, the business-facing substrate/trust-cue/hero-path slices are delivered through `#354` plus demo-critical follow-through from `#326` and `#330`; the rehearsal contract is now codified in `docs/product/SAUL_DEMO_REHEARSAL_CONTRACT.md` (`#355`), and the GTM baseline is now delivered in `#216` with a timed demo script (`docs/product/DEMO_SCRIPT.md`), thesis-aligned landing copy (`docs/product/LANDING_COPY.md`), and beta intake workflow/cadence (`docs/product/BETA_INTAKE_WORKFLOW.md`)
 - demo rehearsal walkthrough (2026-03-27) confirmed the core loop is visually correct but surfaced 9 runtime issues in seed tooling, scenario runner, and DX ergonomics; two are blockers for one-command deterministic rehearsal: seed re-run 409 conflicts (`#387`) and `--skip-llm` proposal alias resolution failure (`#389`); tracked in `#395` with analysis in `docs/analysis/2026-03-27_demo-rehearsal-runtime-issues.md`
+- fresh-registration manual test (2026-03-29) surfaced 2 P0 blockers and 16 additional bugs/observations spanning data isolation, board stability, dark-mode theming, chat utility, and UX polish; full findings at `docs/analysis/2026-03-29_manual_testing_consolidated_findings.md`; P0 blockers: queue data not scoped to the authenticated user (`#508`), board auto-switching on multi-board accounts (`#509`); P1 issues tracked in `#510` through `#515`; P2/P3 in `#516` through `#524`; **no external user onboarding should occur until `#508` is resolved**
 
 Target experience metrics for the capture direction:
 - capture action to saved artifact should feel under 10 seconds in normal use