feat(server): integrate MCP queries and investigation messaging

Add project-bound OAuth MCP queries and controlled analysis with scoped evidence,
limits, timeouts and a nearby-model spatial query using EPSG:4326 inputs.
Default nearby searches to 200 meters and five results.

Integrate investigation messaging/presentation, health/readiness and typed history;
remove duplicate web search and fix online simulation and compressed baseline writes.
Include project migrations 023-025; keep local credentials and demo seeding excluded.

Validation: 319 focused pytest checks; real PostGIS temporary-table regression;
read-only Jinqian bridge radius comparison; cross-language MCP discovery/calls.

docs/investigation-report-contract.md

@@ -149,6 +149,10 @@ failure_code 为 ARTIFACT_INCOMPLETE；调用方须读取返回的业务状态
 
 ## 发布、阅读与协作
 
+执行中尚未形成结论的正文和 Mermaid 使用独立的 `progress` 快照持续更新，
+见 [调查进展与实时展示](investigation-progress-and-presentation.md)。
+报告的 interim/final 与 concluded/insufficient_data 结果契约保持不变。
+
 每次发布保留 `operational.report.published` 同步事件。首次 final、阶段报告转 final、
 新轮次 final 或判断/边界/依据/建议/缺口实质变化时，生成 `report_updated` 通知，
 其中 `report_reference = {execution_generation, revision}`。纯图示修订不生成额外成果提醒。