Initial public release

docs/20-run-readiness/IMPLEMENTATION_READINESS_CHECKLIST.md

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+# Implementation Readiness Checklist
+
+## Repo readiness
+
+- [ ] `CODEX_START.md` exists at repo root.
+- [ ] `docs/00-start/START_HERE.md` exists.
+- [ ] `docs/20-run-readiness/RUN_READINESS_FINAL.md` exists.
+- [ ] `prompts/codex/final/DAY_1_MASTER_PROMPT.md` exists.
+- [ ] `scripts/preimplementation_audit.py` runs.
+- [ ] Demo fixtures validate.
+
+## Architecture readiness
+
+- [ ] Product identity is fixed.
+- [ ] Stack is fixed.
+- [ ] Database choice is fixed.
+- [ ] CRS/GIS standards are fixed.
+- [ ] State machines are fixed.
+- [ ] Golden paths are fixed.
+- [ ] Forbidden decisions are explicit.
+
+## Build readiness
+
+- [ ] Pass order is known.
+- [ ] First vertical slice is known.
+- [ ] V1 exclusions are known.
+- [ ] Definition of Done is known.
+- [ ] Smoke tests are known.
+- [ ] Pass report format is known.
+
+## Release readiness target
+
+- [ ] Backend imports.
+- [ ] Health endpoint works.
+- [ ] Database models exist.
+- [ ] Project/Area/Dataset APIs exist.
+- [ ] Fixtures can be imported.
+- [ ] QA/QC metrics can be computed.
+- [ ] GeoJSON can be exported.
+- [ ] Minimal UI can show results.