v2.0.0

Changelog

• cb73330 Add contributor-safe agent guidance
• 4e300b0 Add secure Streamable HTTP transport
• 1530fbb Complete 2.0.0 release validation
• 4f28a69 Complete bounded-memory streaming
• c922eff Complete generic encoding detection
• 57f1216 Complete pre-release validation hardening
• 6dfe02e Complete public API compatibility cleanup
• 4464049 Complete transport-independent server architecture
• 279808a Consolidate execution preparation and tool metadata
• 1aa3c4d Fix cross-platform alias test fixtures
• d6b04f0 Fix macOS HTTP integration test cleanup
• 682cdb3 Fix macOS allowed-root alias handling
• a6d8ffa Harden packaging and internal validation
• aae5021 Make release archives reproducible
• d2e8f72 Merge setup-go v7 update
• f2c5981 Prepare 2.0.0 release
• 1ed08cc Record completed GitHub release gates
• 3f50719 Reset roadmap and adopt UTF-8 defaults
• 2fda99c Update setup-go to v7