v3.0.0

Changelog

• 9ca9aed Merge pull request #5 from dependabot/go_modules/minor-dependencies-04bbc12619
• fad2bbe build(deps): bump golang.org/x/text in the minor-dependencies group
• 6a48189 build: update Go to 1.26.6
• 29495e2 ci: add golangci-lint and CodeQL
• 898c568 feat: add offline backup recovery
• 5756b31 feat: advance R27 source intelligence through phase 7
• 6f336ef feat: complete R23 mutation surface
• 0433656 feat: complete R25 source intelligence
• 33f1b77 feat: complete R27 phase 8 source intelligence
• 3406970 feat: complete R27 phase 9 source intelligence
• 0f1c115 feat: complete R27 phases 10 and 11
• 1390847 feat: complete R27 phases 12 through 15
• 6c2b2b0 feat: finalize R27 source intelligence and reliability
• dc31180 feat: implement R24 safe filesystem operations
• ea0801e fix: harden R24 native path verification
• b0574de fix: harden Windows atomic replacement
• ea6ff42 fix: keep Staticcheck cross-platform clean