chore(main): release doclab 1.5.0

[github-actions]

🤖 I have created a release beep boop

1.5.0 (2026-06-15)

Features

• auto-detect SPA pages and retry with Jina AI (e158ab2)
• replace Readability + regex HTML-to-MD with turndown + GFM (39fcbb6)
• simplify chunker, add FTS5 search, improve embeddings (8e83463)

Bug Fixes

• code fence splitting in chunker paragraph fallback (a9c3c0b)
• empty headers inherit parent heading, clean trailing paths (7f50c21)
• strip empty anchor links, improve chunk merge granularity (259f31b)

Documentation

• update AGENTS.md with HOW_IT_WORKS reference and correct test command (efecaaf)
• update architecture and HOW_IT_WORKS for new pipeline (17d72d5)
• update architecture docs, changelog, and create AGENTS.md (550c5ce)
• use bun src/cli.ts directly (Bun runs TS natively) (c600332)

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[github-actions]

🤖 Created releases:

• doclab-v1.5.0

🌻