收口 MNote P0 P1 P2 审查尾项

- 归档 OnlyOffice live bridge、Page AI、mindmap、design governance 与相关 bug 条目
- 补齐 MinerU OCR 后端 runtime 合同与 smoke/test 基线
- 收口 ChatOnly/Doubao、ObjectIdentity、Page Aggregate compat 与 runtime owner 文档口径

验证：
- cargo test --manifest-path rust/Cargo.toml -p mnote-web local_ocr -- --test-threads=1
- cargo test --manifest-path rust/Cargo.toml -p mnote-web onlyoffice_bridge -- --test-threads=1
- git diff --check
- git diff --cached --check
- codegraph index . --force && codegraph status .
- codegraph sync . && codegraph status .

rust/crates/mnote-web/src/transport/convex.rs

@@ -2,9 +2,11 @@ use crate::app::AppConfig;
 use crate::context::RequestContext;
 use crate::error::WebError;
 use bridge_runtime::{
-    RuntimeCommandArtifactPlan, RuntimeCommandExecutionPlan, RuntimeQueryExecutionPlan,
+    build_runtime_command_artifact_plan, RuntimeCommandArtifactPlan, RuntimeCommandExecutionPlan,
+    RuntimeQueryExecutionPlan,
 };
 use serde_json::Value;
+use time::{format_description::well_known::Rfc3339, OffsetDateTime};
 
 #[derive(Debug)]
 pub struct RetiredCloudCommandExecution {
@@ -184,23 +186,38 @@ pub async fn execute_retired_mutation_by_name(
 
 pub async fn persist_runtime_command_artifacts(
     _config: &AppConfig,
-    context: &RequestContext,
+    _context: &RequestContext,
     _artifacts: &RuntimeCommandArtifactPlan,
 ) -> Result<(), WebError> {
-    Err(retired_error(context, "convex_artifacts_retired"))
+    // Convex 已退役。Rust 侧仍会把 artifact plan 返回给调用方和 realtime
+    // consumer；这里保持 no-op，避免兼容路径因为历史持久化层退役而失败。
+    Ok(())
 }
 
 pub async fn execute_retired_command_plan_with_artifacts(
     config: &AppConfig,
     context: &RequestContext,
-    _runtime_context: &bridge_runtime::RuntimeBridgeContextWire,
-    _command: &bridge_runtime::RuntimeCommandEnvelopeWire,
+    runtime_context: &bridge_runtime::RuntimeBridgeContextWire,
+    command: &bridge_runtime::RuntimeCommandEnvelopeWire,
     plan: &RuntimeCommandExecutionPlan,
 ) -> Result<RetiredCloudCommandExecution, WebError> {
     let result = execute_retired_command_plan(config, context, plan).await?;
+    let now = OffsetDateTime::now_utc()
+        .format(&Rfc3339)
+        .unwrap_or_else(|_| "1970-01-01T00:00:00Z".into());
+    let artifacts =
+        build_runtime_command_artifact_plan(runtime_context, command, plan, &result, &now);
+    let artifact_error = if let Some(artifacts) = artifacts.as_ref() {
+        persist_runtime_command_artifacts(config, context, artifacts)
+            .await
+            .err()
+            .map(|error| error.message().to_string())
+    } else {
+        None
+    };
     Ok(RetiredCloudCommandExecution {
         result,
-        artifacts: None,
-        artifact_error: None,
+        artifacts,
+        artifact_error,
     })
 }