feat: deploy jarca ledger network mcp service

- add Docker deployment for independent jarca-ledger container
- enable FastMCP streamable-http runtime configuration
- document dcy-013, REQ-019, and BAT-015 verification evidence
- update structure/runtime baselines and deployment runbook

.dockerignore

@@ -0,0 +1,24 @@
+.git
+.venv
+.pytest_cache
+.ruff_cache
+__pycache__
+*.py[cod]
+*.egg-info
+.env
+.env.*
+!.env.example
+.hermes
+.worktrees
+*.sqlite3
+*.sqlite
+*.db
+*.db-*
+*.pdf
+*.xls
+*.xlsx
+*.csv
+tmp_*
+docs
+scripts
+tests