chore: initialize tidalDB repository with schema foundation and standards
- Schema phase 1 (tasks 01-02): EntityId, EntityKind, Timestamp, Score, SignalTypeDef, DecayModel, Window, WindowSet — all with property tests and benchmarks scaffolding
- Stub modules for storage, signals, query, ranking
- Full documentation suite: VISION, USE_CASES, SEQUENCE, API, CODING_GUIDELINES, ai-lookup, research docs, specs, roadmap, planning docs
- Marketing site (Next.js) with blog infrastructure
- .claude/ agents and skills for the tidalDB development workflow
- Foundation standards enforced: thiserror + tracing declared as dependencies, clippy::unwrap_used = deny added to lint config
- .gitignore hardened: .next/, node_modules/, .env, secrets, logs
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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