[Documentation] Create comprehensive documentation suite

[d-oit]

Problem

9 high-priority documentation gaps identified:

1. CLI commands undocumented (17+ commands)
2. No JSDoc on .tsx files
3. No database schema docs
4. No search architecture docs
5. No developer onboarding guide
6. LLM provider config undocumented
7. No deployment guide
8. Repository API undocumented
9. VERSION/CHANGELOG sync broken

Solution

Phase 1: Critical Docs

• docs/CLI.md — full command reference
• docs/DATABASE.md — schema with ER diagram
• docs/DEVELOPMENT.md — onboarding guide

Phase 2: Feature Docs

• docs/SEARCH.md — search architecture
• docs/LLM-SETUP.md — provider configuration
• docs/REPOSITORY-API.md — API reference

Phase 3: Deployment

• docs/DEPLOYMENT.md — hosting guide
• Fix VERSION/CHANGELOG sync

Phase 4: Code Docs

• JSDoc for all exported components
• JSDoc for Zod schemas
• JSDoc for error codes

Acceptance Criteria

• CLI reference documents all commands
• Database schema has ER diagram
• Developer onboarding guide exists
• Search architecture documented
• LLM setup guide exists
• Deployment guide exists
• Repository API documented
• All exported components have JSDoc
• VERSION/CHANGELOG in sync

Priority

High — 9 high-priority documentation gaps.

Plan

See plans/36-documentation-overhaul.md

[google-labs-jules]

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