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/instrument/map/bank_sync.cpp

@@ -60,4 +60,4 @@ AssignConsumeDecision consumeDecision(const std::optional<AssignmentRequest>& re
     return d;
 }
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/bank_sync.h

@@ -104,4 +104,4 @@ AssignConsumeDecision consumeDecision(const std::optional<AssignmentRequest>& re
                                       std::int64_t lastConsumed, bool resolves,
                                       bool isFocusedTarget);
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/bridge_marshal.cpp

@@ -13,4 +13,4 @@ std::optional<std::string> decodeGetProjExtState(int apiReturn,
     return buffer;
 }
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/bridge_marshal.h

@@ -34,4 +34,4 @@ namespace reasampler::instrument::map {
 std::optional<std::string> decodeGetProjExtState(int apiReturn,
                                                   const std::string& buffer);
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/note_entry.cpp

@@ -110,4 +110,4 @@ std::optional<int> parseNoteEntry(const std::string& text) {
     return parseNoteName(s);
 }
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/note_entry.h

@@ -30,4 +30,4 @@ namespace reasampler::instrument::map {
 // into [0,127]; empty or unparseable input returns nullopt (no change). Pure — no host types.
 std::optional<int> parseNoteEntry(const std::string& text);
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/trigger_seam.cpp

@@ -24,4 +24,4 @@ std::int64_t fadeFractionToFrames(double fadeFraction, std::int64_t playLength)
     return static_cast<std::int64_t>(fadeFraction * static_cast<double>(playLength) + 0.5);
 }
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map

src/core/instrument/map/trigger_seam.h

@@ -48,4 +48,4 @@ double framesToFadeFraction(std::int64_t fadeFrames, std::int64_t playLength);
 // Rounds to nearest integer frame. Returns 0 when playLength == 0.
 std::int64_t fadeFractionToFrames(double fadeFraction, std::int64_t playLength);
 
-}  // namespace reasampler::instrument::map
+}  // namespace reasampler::instrument::map