Firecrawl CLI v1.21.0

• release: 1.21.0 (#197)
• developer: keep passage budget server-side
• developer: validate passage budget flag
• developer: delegate passage sizing to search server
• docs(skills): restore agent-browser prefix in interact bash examples (#195)
• Merge pull request #193 from chenxin-yan/skills/consolidated-docs-fixes
• docs(skills): make the feedback example valid for every rating
• docs(skills): use a rating placeholder so feedback examples stay unbiased
• docs(skills): collapse feedback example to one default call
• docs(skills): make only one feedback rating live in the guard example
• docs(skills): update stale firecrawl-cli link labels to firecrawl
• docs(skills): finish firecrawl skill rename and inline the feedback guard
• docs(skills): rename firecrawl-cli skill folder to match its frontmatter name
• docs(skills): make the search-feedback guard actually skip on failure
• docs(skills): clarify auth and API-side behavior
• docs(skills): fix remaining wrong claims found in review
• docs(skills): clarify multi-URL scrape drops non-markdown formats
• docs(skills): correct behavior claims
• docs(skills): address review findings
• docs(skills): fix broken command examples
• docs(skills): fix allowed-tools npx pattern and broken workflow links
• remove hard coded version
• Merge pull request #166 from firecrawl/docs/search-highlights-flag
• Merge remote-tracking branch 'origin/main' into docs/search-highlights-flag
• docs(skills): tighten highlights tip wording
• docs(skills): trim highlights tip to match surrounding style
• Merge remote-tracking branch 'origin/main' into docs/search-highlights-flag
• docs(skills): document --highlights/--no-highlights in firecrawl-search