refactor: remove Web API facade indirection and duplicate queries

[lbx154]

Web API services called back through server.py to reach their own implementation functions, and routes received the entire server module as a dependency. Call the owning modules directly and remove the late-bound _server_module resolver and the server's forwarding tables. server.py now owns app composition, middleware, and event streaming; package-level argus.webapi.build_snapshot and project_life_dir remain available.

Share daemon command execution/receipt formatting across the six command routes, retaining command IDs, revision checks, threadpool execution, and explicit provider-fence resumption. Project and cost listings share the same first-root ownership traversal. Initialize per-app caches directly instead of maintaining lazy fallbacks for test subclasses; per-app daemon services and query workers remain isolated.

Net reduction from dev 4d65e66a: 278 lines overall, including 318 production Python lines. Tests now patch the implementation owner and retain their existing behavior scenarios; no test cases were removed. The architecture counter for the legacy session_states_root name decreases from 23 to 22 because the duplicated traversal was consolidated.

Validation: 1,467 focused tests passed with 2 skips; all 43 architecture tests pass after tightening that counter. Ruff and git diff --check pass. npm run check passes all 226 tests; the full Python regression in an isolated environment passes: 11,386 passed, 99 skipped. AST comparison confirms the same 444 test functions and parameter sets across the 24 touched test files. Documentation: describe the direct Web API imports and shared command/query paths in the runtime maintenance guide. CI/workflow: no changes; require the existing Python suite and all three TypeScript/ownership platforms before merge. No service restart or deployment is included.