Bootstrap FlashcardKit package foundation

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Summary

• synchronize the complete AgentGuidelines 0.0.29 tagged tree
• add the Swift 6.4 package foundation, AppLogger availability, smoke test, and DocC catalog
• add shared swift-format configuration, repository policies, gitignore, CI, and release-triggered documentation publishing
• document the initial package boundary and anyAppleOS 26+ (iOS, macOS, tvOS, watchOS, and visionOS) support
• add the requested Swift, Xcode, platform, SPM, DocC, MIT, CI, and release badges

Validation

• AgentGuidelines/Scripts/swift_format.sh lint-strict Package.swift Sources Tests
• AgentGuidelines/Scripts/validate_consumer_setup.swift
• swift test
• local DocC static-site generation
• Markdown wrapping audit
• git diff --check outside the provenance-verified synchronized subtree
• AgentGuidelines tree efd1b47917d3e6cb2ec4c6d1adce94a0fa01c56b matches tag 0.0.29

Release

No tag or release is included or requested by this pull request.

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Reasoning Relay final review receipt

• Verdict: APPROVED
• Reviewed base: 5dd8ab8
• Reviewed head: 1573126
• Blocking findings: None
• Delegation: del_70e028fe-3067-45d8-9905-d347e1917f39
• Response hash: a7ebbf01188c02a2675f6cfd016bf26791155af3d6b7cb41745793f550e268ab