SBPro 479b592076 Add versioning contract: semver policy, breaking change sections, schema_version guard ...

- CHANGELOG: add ### Breaking Changes section to all versions (None for 1.1–1.3)
- README: add Versioning section with semver table and floating tag explanation
- schema/config-schema.json: add schema_version field (const: 1, optional)
- lib/config.sh: fail fast if schema_version is present and unsupported

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-01 00:56:33 +03:00

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config-schema.json

Add versioning contract: semver policy, breaking change sections, schema_version guard

2026-04-01 00:56:33 +03:00