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

docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  jarca-ledger:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: jarca-ledger:latest
+    container_name: jarca-ledger
+    restart: unless-stopped
+    ports:
+      - "8000:8000"
+    environment:
+      JARCA_LEDGER_DB_PATH: /data/ledger.sqlite3
+      JARCA_MCP_TRANSPORT: streamable-http
+      JARCA_MCP_HOST: 0.0.0.0
+      JARCA_MCP_PORT: "8000"
+      JARCA_MCP_STREAMABLE_HTTP_PATH: /mcp
+      PYTHONUNBUFFERED: "1"
+    volumes:
+      - /volume1/docker/jarca-ledger/data:/data