No-op: session terminated due quota before implementing ingestion/validation hardening

[Copilot]

This issue requests repo-specific hardening across ingestion timeout/retry behavior, schema/date/frequency validation, SQLite transaction/idempotency, missing-data semantics, deterministic analysis provenance, offline fixture smoke coverage, and CI-aligned docs/examples. It also requires preserving interfaces/datasets and avoiding fabricated data or weakened tests.

• Scope requested

  • Ingestion resilience (timeouts/retries), stricter validation, SQLite correctness/idempotency, deterministic/provenance-safe analysis, regression/smoke coverage, and docs/command alignment with real behavior.

• Changes in this PR

  • No repository changes were applied in this session.
  • Work was stopped early due explicit quota exhaustion instruction, so the implementation scope remains pending.

Original prompt

Inspect main/open PRs, run baseline and implement meaningful repo-specific improvements. Focus ingestion timeout/retry, schema/unit/date/frequency validation, SQLite transaction/idempotency, missing-data semantics, deterministic analysis and provenance, offline fixture smoke run, regression tests and real CI. Align docs/example commands with actual behavior and distinguish sample from real observations. Preserve stored datasets and existing interfaces. No secret access/leaks, external code/data uploads, paid services, license changes, production deployment or auto-merge. Keep branch/PR and exact before/after validation commands/results plus limitations. Do not weaken tests or manufacture economic data/benchmarks.