fix(mcp): align SDK and wire streamable server manually

- align all io.modelcontextprotocol.sdk artifacts to 0.18.1 via
  dependencyManagement so Spring AI transitives no longer pull mcp 0.10.0
- exclude Spring AI's legacy MCP server/webmvc auto-config, which is binary-
  incompatible with the 0.18.1 streamable transport APIs
- build McpSyncServer directly against WebMvcStreamableServerTransportProvider
  and adapt Spring AI ToolCallbacks to MCP SyncToolSpecifications manually
- keep /mcp as the sole Streamable HTTP endpoint for both initialize/tool calls
  and optional SSE event streams
- update MCP transport documentation to match the new runtime

Validated locally with:
- POST /mcp initialize -> HTTP 200 + Mcp-Session-Id
- POST /mcp tools/list -> returns resolve-library-id + get-library-docs

trueref-bootstrap/src/main/resources/application.yml

@@ -21,11 +21,14 @@ spring:
     async:
       request-timeout: 0   # MCP GET streams must not time out
   # Spring AI MCP server — Streamable HTTP transport (MCP spec 2025-03-26).
-  # McpWebMvcServerAutoConfiguration (SSE transport) is excluded below;
-  # WebMvcStreamableServerTransportProvider is wired manually in McpConfig.
+  # Spring AI 1.0.0's MCP auto-config only knows the legacy SSE/stdIO transport interfaces,
+  # so both MCP auto-config classes are excluded below and the Streamable HTTP transport plus
+  # McpSyncServer are wired manually in McpConfig.
   # Clients connect with type: http at POST /mcp.
   autoconfigure:
-    exclude: org.springframework.ai.mcp.server.autoconfigure.McpWebMvcServerAutoConfiguration
+    exclude:
+      - org.springframework.ai.mcp.server.autoconfigure.McpWebMvcServerAutoConfiguration
+      - org.springframework.ai.mcp.server.autoconfigure.McpServerAutoConfiguration
   ai:
     mcp:
       server: