feat: boost interactive elements for action-oriented queries

[Djain912]

Summary

• add Interactive to ElementDescriptor
• propagate interactive from snapshot JSON to descriptors in CLI loading
• apply interactive score boost in lexical matcher
• action-oriented queries get a stronger boost than non-action queries
• add tests for action verb detection, boost behavior, interactive ranking, and snapshot propagation

Issue

Closes #2

Validation

• go test -c ./internal/engine (compile-only)
• go test -c ./cmd/semantic (compile-only)
• Full test execution is blocked in this environment by Windows Application Control policy for generated test executables

[luigi-agosti]

@Djain912 if you have dependent pr you could also do a pr on top of one, also in this early phases when there is a lot to do I'll not complain if you do multiple fixes in one pr

[luigi-agosti]

@Djain912 fix the conflict and feel free to merge this pr