test(mcp): canonicalize temp profile roots

Author: ScriptedAlchemy

tests/mcp_suite/fixture.rs

@@ -273,9 +273,10 @@ async fn build_template(dest: &Path) -> io::Result<()> {
     // repo's .git and bootstrap branch metadata that a TempDir-based test
     // project would never have.
     let scratch = tempfile::TempDir::new()?;
+    let scratch_root = scratch.path().canonicalize()?;
 
     for (flavor, indexed) in [(EMPTY_FLAVOR, false), (INDEXED_FLAVOR, true)] {
-        let root = scratch.path().join(flavor);
+        let root = scratch_root.join(flavor);
         let project = root.join("project");
         fs::create_dir_all(&project)?;
         if indexed {

tests/mcp_suite/mcp_dashboard_tool_test.rs

@@ -11,6 +11,8 @@ use tempfile::TempDir;
 use tracedecay::mcp::handle_tool_call;
 use tracedecay::tracedecay::{TraceDecay, TraceDecayOpenOptions};
 
+use crate::common::canonical_existing_path;
+
 /// The dashboard manager is process-global (one dashboard per MCP server
 /// process), so these tests must not run concurrently: serialize them.
 static TEST_LOCK: tokio::sync::Mutex<()> = tokio::sync::Mutex::const_new(());
@@ -19,7 +21,7 @@ async fn setup_minimal_project() -> (TraceDecay, TempDir, TempDir) {
     let home = TempDir::new().unwrap();
     let dir = TempDir::new().unwrap();
     let project = dir.path();
-    let profile_root = home.path().join(".tracedecay");
+    let profile_root = canonical_existing_path(home.path()).join(".tracedecay");
     let open_options = TraceDecayOpenOptions {
         profile_root: Some(profile_root.clone()),
         global_db_path: Some(profile_root.join("global.db")),

tests/mcp_suite/multi_mcp_coordination_test.rs

@@ -3,12 +3,14 @@ use tempfile::tempdir;
 use tracedecay::mcp::McpServer;
 use tracedecay::tracedecay::{TraceDecay, TraceDecayOpenOptions};
 
+use crate::common::canonical_existing_path;
+
 #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
 async fn two_mcps_on_same_project_coordinate_via_sync_lock() {
     let home = tempdir().unwrap();
     let tmp = tempdir().unwrap();
     let project = tmp.path().to_path_buf();
-    let profile_root = home.path().join(".tracedecay");
+    let profile_root = canonical_existing_path(home.path()).join(".tracedecay");
     let open_options = TraceDecayOpenOptions {
         profile_root: Some(profile_root.clone()),
         global_db_path: Some(profile_root.join("global.db")),