[codex] Add parser service entrypoint

[GTrunSec]

Summary

• add a package-owned scripts/run_service.jl entrypoint for WendaoCodeParser parser-summary and AST-query Flight routes
• add the live parser-summary config and package contract consumed by integration support
• expose service runtime helpers and cover route parsing, listener config, and routed live service behavior
• align Arrow/ArrowTypes source pins and remove stale gRPCServer source/test metadata from the CodeParser package

Why

CodeParser now owns parser-summary and AST-query service startup directly. This keeps parser runtime behavior inside the parser package instead of relying on a WendaoSearch-owned wrapper or mounted Search service path.

Validation

• direnv exec . julia --project=.data/WendaoCodeParser.jl -e 'using Pkg; Pkg.test()'\n- git -C .data/WendaoCodeParser.jl diff --check\n\n## Notes\n\nThis branch also includes the existing bootstrap/source-pin commits already present on the CodeParser working branch so the new service entrypoint validates against the current WendaoArrow/Arrow substrate.