S10: capture-first ReaSampler 9000 editor — browser, single-capture setup, zones toggle

Reverse S4 auto-select (empty=silence+empty state), add peak-thumbnail capture
browser + bank filter + keyboard-strip drag machine, v3 component state (selection
+ zones), and the S-NAME-1 filename/display rename (UID locked). MSVC min/max
macro collisions fixed post-implementation; 26/26 tests green.

src/vst/reasampler_processor.h

@@ -115,10 +115,10 @@ public:
     // The bridge, for the editor's live-state readout + sample list. Owned here; the
     // editor borrows it (outlives the editor).
     ReaperBridge& bridge() { return bridge_; }
-    // The current selection id (main/UI thread reads for the editor). Guarded by
-    // selectionMutex_ — never touched on the audio thread. In Tier 1 the selection is the
-    // Tier-0 FALLBACK sample (played chromatically when the performance map is empty); the
-    // zoned map, when non-empty, supersedes it.
+    // The current single-capture selection id (main/UI thread reads for the editor). Guarded
+    // by selectionMutex_ — never touched on the audio thread. Since S10 this is the ONE picked
+    // capture the default face plays chromatically when the performance map is empty; an EMPTY
+    // id resolves to SILENCE (no first-sample fallback). A non-empty zoned map supersedes it.
     std::string selectedSampleId();
     void setSelectedSampleId(const std::string& id);
 
@@ -166,8 +166,9 @@ private:
     std::vector<GraveyardEntry> graveyard_;  // drained on reclaim + setActive(false) + terminate
     std::mutex reloadMutex_;  // serializes off-thread reloads + graveyard access
 
-    // The selected sample id (Tier-0 fallback sample). Off-thread only; a small mutex
-    // guards the string against a getState/editor race. NOT read on the audio thread.
+    // The single-capture selection id (S10: the ONE picked capture; "" = no pick -> silence).
+    // Off-thread only; a small mutex guards the string against a getState/editor race. NOT
+    // read on the audio thread.
     std::mutex selectionMutex_;
     std::string selectedSampleId_;