v0.50.0 - Deeper structural graph and bounded reranking

Highlights

• Added qualified Python and PHP symbol identities.
• Added scoped symbol-to-symbol calls, inheritance and implementation relations.
• Improved relation resolution, trace, query and graph exports.
• Added a conservative one-hop structural reranker.
• Strongly matching test methods can promote directly related production code.
• Added fan-out limits and safeguards against generic test classes and inheritance noise.
• Expanded the deterministic flow-graph benchmark.

Validation

• 210 tests passed.
• 30/30 extraction expectations passed.
• 28/28 relation-resolution expectations passed.
• 8/8 ranking cases achieved a Top-3 hit.
• No ranking regressions observed in the tested direct-query sets.

The reranker is intentionally conservative. It provides an additional structural signal when the graph has
sufficient evidence; it is not a replacement for direct file verification.

Upgrade note

This release uses a newer graph extractor. After upgrading, rebuild existing repository indexes:

init-agent map
init-agent doctor