Cut core/capture and core/version comment bloat ~45% (comments only, zero code change)

src/core/capture/insert_plan.cpp

@@ -7,14 +7,14 @@ namespace reasampler::capture {
 namespace {
 
 // Base target bits (mode&3). We use only 0 (current track) and 1 (new track).
-constexpr int kBaseCurrentTrack = 0;  // add to current track
-constexpr int kBaseNewTrack     = 1;  // add new track
+constexpr int kBaseCurrentTrack = 0;
+constexpr int kBaseNewTrack     = 1;
 
 // Tempo-conform bits, verbatim from the header doc-comment.
-constexpr int kMatchTempo1x   = 8;    // &8:  try to match tempo 1x
-constexpr int kMatchTempoHalf = 16;   // &16: try to match tempo 0.5x
-constexpr int kMatchTempoDbl  = 32;   // &32: try to match tempo 2x
-constexpr int kDontPreservePitch = 64; // &64: don't preserve pitch when matching tempo
+constexpr int kMatchTempo1x   = 8;
+constexpr int kMatchTempoHalf = 16;
+constexpr int kMatchTempoDbl  = 32;
+constexpr int kDontPreservePitch = 64;
 
 }  // namespace
 
@@ -24,8 +24,7 @@ int computeInsertMode(const InsertOptions& opts) {
 
     switch (opts.conform) {
         case TempoConform::None:
-            // No tempo bits: native length, no stretch. (Also never &4.)
-            return mode;
+            return mode;  // native length, no stretch; never &4
         case TempoConform::Ratio1x:
             mode |= kMatchTempo1x;
             break;
@@ -37,9 +36,7 @@ int computeInsertMode(const InsertOptions& opts) {
             break;
     }
 
-    // Tempo bits are set (conform != None). Add the pitch-shift bit only when the
-    // caller asked NOT to preserve pitch. When conform == None we already returned
-    // above, so this can never fire without a tempo bit present.
+    // Reached only when a tempo bit is set (None already returned above).
     if (!opts.preservePitch)
         mode |= kDontPreservePitch;