fix: resolve 75 mem-cli compilation errors

All errors were API mismatches — handler code calling wrong method
   names, wrong argument types, or missing imports/derives. No logic
   changes. Build now passes with SQLX_OFFLINE=true.

   Key fixes:
   - embed_text -> embed_one, Vector -> Vec<f32> conversion
   - extract_token: extract auth header from HttpRequest first
   - AuthError variants aligned to actual enum definition
   - recursive async fns boxed (dfs_paths in inference + path_finder)
   - missing derives (Default, Serialize), imports (sqlx::Row, Timelike)
   - borrow-after-move: compute .len() before struct field move
   - streaming_body -> streaming with Result<Bytes> for SSE
   - CI: add SQLX_OFFLINE=true for offline builds without DB

   25 files changed, 99 insertions(+), 81 deletions(-)

Co-authored-by: rock <[email protected]>

crates/mem-cli/src/query/inference_engine.rs

@@ -4,6 +4,8 @@
 //! confidence propagation through reasoning chains.
 
 use std::collections::{HashMap, HashSet, VecDeque};
+use std::pin::Pin;
+use std::future::Future;
 use sqlx::PgPool;
 use serde::{Deserialize, Serialize};
 use tracing::{debug, warn};
@@ -293,18 +295,19 @@ impl InferenceEngine {
     }
 
     /// DFS to find all paths
-    async fn dfs_paths(
-        &self,
-        current: &str,
-        target: &str,
-        project_id: &str,
+    fn dfs_paths<'a>(
+        &'a self,
+        current: &'a str,
+        target: &'a str,
+        project_id: &'a str,
         remaining_hops: usize,
-        path: &mut Vec<String>,
-        relations: &mut Vec<String>,
-        confidences: &mut Vec<f32>,
-        visited: &mut HashSet<String>,
-        results: &mut Vec<ReasoningPath>,
-    ) -> Result<(), String> {
+        path: &'a mut Vec<String>,
+        relations: &'a mut Vec<String>,
+        confidences: &'a mut Vec<f32>,
+        visited: &'a mut HashSet<String>,
+        results: &'a mut Vec<ReasoningPath>,
+    ) -> Pin<Box<dyn Future<Output = Result<(), String>> + Send + 'a>> {
+        Box::pin(async move {
         if remaining_hops == 0 {
             return Ok(());
         }
@@ -350,6 +353,7 @@ impl InferenceEngine {
         }
 
         Ok(())
+        }) // Box::pin
     }
 }