refactor(capture): expose offline tail as docked-panel toggle

Replace the ...-with-tail variant actions with a pure tail_control module +
a docked-panel footer toggle (Off/Auto/Manual) read by CAPTURE_ITEM/TRACK.
Default None (byte-identical); Manual fixed 2s, in-memory session lifetime.
Tail mechanism unchanged; retired the variant ids.

src/render_settings.cpp

@@ -179,38 +179,25 @@ RazorRange razorUnionBounds(const std::vector<RazorRange>& ranges) {
 }
 
 const std::vector<CaptureActionDef>& captureActionTable() {
-    // Built once (function-local static): two SCOPE actions x two tail variants.
-    // The None rows are exact bounds (byte-identical to today); the …_TAIL rows are
-    // the paired TailMode::Auto "…with tail" variants (Daniel's lean over silently
-    // flipping the exact-bounds default — spec §Open questions). Ids are FOREVER-
-    // STABLE — never edit a shipped string. Each action infers its range
-    // (razor-else-time) at fire time and enforces its FX-scope invariant via
-    // fxBypassPlanFor. The M7 CAPTURE_TRACKS_WET / CAPTURE_ITEMS_WET /
-    // CAPTURE_RAZOR_WET ids are RETIRED (mirror-unregistered in main.cpp); the
-    // CAPTURE_MASTER scope action is REMOVED (its id is likewise mirror-
-    // unregistered) — to capture the master you render a track.
+    // Built once (function-local static): two SCOPE actions, item + track. Both
+    // exact bounds by default; the tail mode a capture applies is read from the
+    // docked-panel setting at fire time (tail_control + bank_panel), so tail is NOT
+    // a per-action variant. Ids are FOREVER-STABLE — never edit a shipped string.
+    // Each action infers its range (razor-else-time) at fire time and enforces its
+    // FX-scope invariant via fxBypassPlanFor. The M7 CAPTURE_TRACKS_WET /
+    // CAPTURE_ITEMS_WET / CAPTURE_RAZOR_WET ids are RETIRED (mirror-unregistered in
+    // main.cpp); the CAPTURE_MASTER scope action is REMOVED (its id is likewise
+    // mirror-unregistered) — to capture the master you render a track.
     static const std::vector<CaptureActionDef> table = {
-        // Item scope, exact bounds — item/take FX only.
+        // Item scope — item/take FX only.
         {"CEREBELLUM_REASAMPLER_CAPTURE_ITEM",
          "ReaSampler: capture selected item(s)", "item",
-         CaptureScope::Item, TailMode::None},
+         CaptureScope::Item},
 
-        // Track scope, exact bounds — item FX + the track's own FX.
+        // Track scope — item FX + the track's own FX.
         {"CEREBELLUM_REASAMPLER_CAPTURE_TRACK",
          "ReaSampler: capture selected track(s)", "track",
-         CaptureScope::Track, TailMode::None},
-
-        // Item scope with Auto tail — captures the take-FX decay past the range end,
-        // trimmed to -72 dB. NEW forever-stable id.
-        {"CEREBELLUM_REASAMPLER_CAPTURE_ITEM_TAIL",
-         "ReaSampler: capture selected item(s) with tail", "item",
-         CaptureScope::Item, TailMode::Auto},
-
-        // Track scope with Auto tail — captures the track's own reverb/delay decay
-        // past the range end, trimmed to -72 dB. NEW forever-stable id.
-        {"CEREBELLUM_REASAMPLER_CAPTURE_TRACK_TAIL",
-         "ReaSampler: capture selected track(s) with tail", "track",
-         CaptureScope::Track, TailMode::Auto},
+         CaptureScope::Track},
     };
     return table;
 }