chore(main): release doclab 1.6.0

[github-actions]

🤖 I have created a release beep boop

1.6.0 (2026-06-15)

Features

• cli: streaming progress for add/pull/rebuild with crash recovery (717bfd2)

Bug Fixes

• clean expansion message, remove duplicate daemon-start log (7e7aa9b)
• eliminate ReadableStream crash from async start + await (aa3b3e4)
• indent stderr fetch progress to match CLI output (a0540a3)
• single-line fetch progress during llms.txt expansion (8e7968d)
• stream sub-page fetch progress instead of stderr (5ae3372)
• truncate subfetch progress lines, clear on completion (f215d20)

Performance

• unify progress renderers, add embed progress, fix dead code (489e2e6)

Documentation

• sync documentation with current codebase (762dc1c)

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[github-actions]

🤖 Created releases:

• doclab-v1.6.0

🌻