chore(main): release 2.5.0

[github-actions]

🤖 I have created a release beep boop

2.5.0 (2026-08-02)

Features

• audit: add --all-sites rolled-up report (#295) (9d91fe2)
• optimize: add jSquash encoder pre-flight with strict/fallback (#304) (c451fa3)

Bug Fixes

• a11y: keep per_page fixed to prevent pagination offset regression (#296) (521cb8d)
• briefing: exclude non-optimize operations from unoptimized counts (#305) (deb3d9c)
• briefing: stop reporting false-clean when checks fail to run (#302) (5a2abcd)
• doctor: set non-zero exit code when error-severity issues are found (#300) (012eda3)
• history: add rowid tie-breaker to session ORDER BY queries (#299) (311adc6)
• mcp: add dryRun param and destructive-write warning to references tool (#298) (c29a90f)
• optimize: record post-processing width/height after replace-in-place (#306) (f9874a9)

Documentation

• optimize: add png to --to help text (#297) (9491a8e)

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[github-actions]

🤖 Created releases:

• v2.5.0

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