Q-W1 code-review follow-ups: restore 104 trailing newlines, relocate reasampler_uid.h to core/wire, drop ext_keys namespaces shim, add slot_map_tests, golden serialize literals for 4 modules, namespaces.h/pragma-once ordering sweep. 60/60 green.

src/core/capture/batch_capture.cpp

@@ -73,4 +73,4 @@ std::string BatchOutcome::summaryLine(const std::string& noun) const {
     return line;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/batch_capture.h

@@ -97,4 +97,4 @@ private:
     std::vector<BatchUnitResult> results_;
 };
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/capture_paths.cpp

@@ -284,4 +284,4 @@ ProjectTransition classifyProjectTransition(bool sameProjectObject,
     return ProjectTransition::NoOp;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/capture_paths.h

@@ -212,4 +212,4 @@ ProjectTransition classifyProjectTransition(bool sameProjectObject,
                                             const std::string& currentGuid,
                                             const std::string& currentPath);
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/insert_plan.cpp

@@ -46,4 +46,4 @@ int computeInsertMode(const InsertOptions& opts) {
     return mode;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/insert_plan.h

@@ -72,4 +72,4 @@ int computeInsertMode(const InsertOptions& opts);
 // any computed mode (the "no silent time-stretch" invariant, made checkable).
 inline constexpr int kStretchToTimeSelBit = 4;
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/realtime_record.cpp

@@ -124,4 +124,4 @@ bool isTerminalPhase(RecordPhase phase) {
     return phase == RecordPhase::Done || phase == RecordPhase::Failed;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/realtime_record.h

@@ -235,4 +235,4 @@ bool isStopRequested(RecordPhase phase);
 // Only Done and Failed are terminal; Recording and Finalizing are live.
 bool isTerminalPhase(RecordPhase phase);
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/render_settings.cpp

@@ -221,4 +221,4 @@ const std::vector<CaptureActionDef>& captureActionTable() {
     return table;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/render_settings.h

@@ -262,4 +262,4 @@ struct CaptureActionDef {
 // capture applies is read from the docked-panel setting, not baked into the row.
 const std::vector<CaptureActionDef>& captureActionTable();
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/tail_control.cpp

@@ -128,4 +128,4 @@ std::optional<TailSetting> deserializeTailSetting(const std::string& blob) {
     return out;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/tail_control.h

@@ -67,4 +67,4 @@ std::string tailToggleLabel(const TailSetting& setting);
 std::string serializeTailSetting(const TailSetting& setting);
 std::optional<TailSetting> deserializeTailSetting(const std::string& json);
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/wav_trim.cpp

@@ -157,4 +157,4 @@ WavTruncatePlan planWavTruncate(const WavLayout& layout, std::size_t keptFrames)
     return plan;
 }
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture

src/core/capture/wav_trim.h

@@ -100,4 +100,4 @@ struct WavTruncatePlan {
 // truncate the file to newFileByteLength.
 WavTruncatePlan planWavTruncate(const WavLayout& layout, std::size_t keptFrames);
 
-} // namespace reasampler::capture
+} // namespace reasampler::capture