fix(ci): canonicalize verbatim Tomcat roots on Windows and match the plain agent reply style in e2e

Skip canonicalizing a bare drive prefix such as `\\?\C:`, which opens the volume device and fails
with ERROR_INVALID_FUNCTION. Update the agent approval e2e to the plain reply and 6px prompt radius
introduced in #2118.

crates/ide-run/src/tomcat.rs

@@ -401,6 +401,10 @@ fn canonical_path(path: &Path) -> IdeResult<PathBuf> {
             std::path::Component::CurDir => {}
             _ => resolved.push(component),
         }
+        // A bare drive prefix such as `\\?\C:` names the volume device, which cannot be canonicalized.
+        if !resolved.has_root() {
+            continue;
+        }
         match dunce::canonicalize(&resolved) {
             Ok(path) => resolved = path,
             Err(e) if e.kind() == std::io::ErrorKind::NotFound && fs::symlink_metadata(&resolved).is_err() => {}

e2e/agentApproval.spec.ts

@@ -112,9 +112,10 @@ for (const theme of ["dark", "light"] as const) {
       });
       expect(geometry.scroll).toBe(geometry.client);
       expect(geometry.contained).toBe(true);
-      expect(geometry.promptRadius).toBeLessThanOrEqual(4);
-      expect(geometry.replyBackground).not.toBe("rgba(0, 0, 0, 0)");
-      expect(geometry.replyBorder).toBe("1px");
+      expect(geometry.promptRadius).toBeLessThanOrEqual(6);
+      // Replies read as plain text on the panel.
+      expect(geometry.replyBackground).toBe("rgba(0, 0, 0, 0)");
+      expect(geometry.replyBorder).toBe("0px");
       expect(geometry.userOnRight).toBe(true);
       expect(geometry.approvalAligned).toBe(true);
       expect(geometry.authorBeforeWork).toBe(true);