Re-tier the showcase docs tree to be an agent entry point: README.md
opens with a 'when X, see Y' fanout table that routes to the right
procedural doc; each procedural doc gets a one-line tagline answering
'what does this answer'.
Consolidation:
- DELETE showcase/RUNBOOK.md — operational content merged into DEBUGGING.md
(Integration Patterns, Docker Compose Environment, Production Debugging,
Anti-Patterns, Aimock Fixture Deployment, Dev Iteration Speed). The
--isolate mechanics + CLI rules were already duplicated in DEBUGGING.md.
- DELETE showcase/QA-COVERAGE.md — per-demo coverage matrix + starter hero
matrix + probe depth + infra locations + gaps folded into TESTING.md as
the 'Per-Demo Coverage Matrix' section.
Taglines added (no behavioral change to content): TESTING.md, DEBUGGING.md,
GOTCHAS.md, INTEGRATION-CHECKLIST.md, STYLING-GUIDE.md, FRONTEND-STRATEGY.md,
RAILWAY.md, bin/README.md, aimock/README.md, aimock/RAILWAY.md,
harness/README.md, harness/docs/rotation-drill.md.
Cross-link fixups: FRONTEND-STRATEGY.md (was QA-COVERAGE.md →
TESTING.md#per-demo-coverage-matrix), TESTING.md (removed dangling RUNBOOK
companion reference), README.md (rewritten as fanout entry + retained
from-scratch setup + dashboard SOPs below the fanout).
PARITY_NOTES.md × 12 left alone (per-slug context, not redundant).
(cherry picked from commit 75c9d9755c9118c8abc1fa52deda2012b768cab1)
(cherry picked from commit b64189bae0fe2c9e3a5e3ca440013deb4121f23b)
The shared `copilotkit-overrides.css` files in langgraph-python,
langgraph-typescript, mastra, built-in-agent, and the starter template
forced `.copilotKitChat { background-color: #fff !important; }`, which
won over the demo-level `ThemeProvider` and made the beautiful-chat
demo render a white panel in dark mode. langgraph-fastapi has no
overrides file and was unaffected — same fix gets the others to parity.
Also add a warning in showcase/STYLING-GUIDE.md so the example block
isn't pasted back in by the next contributor.