fix(lanes): expire stale stage detections, cover raw test runs in ship-feature gates

withDetected() rendered lane.detected_stage forever once written — the TTL in
recordDetection only stops future writes from advancing past a stale floor, it
never clears the row, so a lane gone quiet kept painting amber nodes from
activity that was no longer current. Also add the shared test-runner regex to
the ship-feature pipeline's `gates` node: Stage 1b's independent-test subagent
runs the repo's test command directly, not through `ccam`, and had no
detection fallback if `ccam stage tests` was skipped.

server/data/pipelines/ship-feature.json

@@ -96,6 +96,10 @@
         {
           "tool": "Bash",
           "match": "\\bccam\\b[^;&|]*(\\bhook ci-gate\\b|\\bsync-base --check\\b)"
+        },
+        {
+          "tool": "Bash",
+          "match": "\\b(npm (run )?test|pytest|vitest|jest|go test|cargo test|node\\s+--test|rspec|phpunit|dotnet test|mvn test|gradle test)\\b"
         }
       ]
     },