Lift the sign-off DRAFT note, fix footer/cursor CLAUDE.md overclaim, honest-en the readout-width test, trim duplicated rationale

Removed DRAFT marker on approved readout strings; corrected "paint and cursor cannot disagree" to note drag-cue suppression; renamed the width test to state it only bounds character count, not pixels; trimmed restated rationale to its CLAUDE.md/header home.

src/core/ui/footer_bar.h

@@ -88,11 +88,10 @@ bool modeSegmentEnabled(bool isActiveSegment, bool transportRunning, bool routab
 // Idle is "nothing moving", never "no work queued" — the shell's enum owns that reasoning.
 enum class FxDrainState { Idle, Online, Offline };
 
-// DRAFT wording, pending sign-off. Short on purpose: these share the count box, whose
-// default 64px holds roughly a dozen glyphs at the panel's smallest font before the
-// shell's kit end-ellipsizes it. The two directions read differently because they ARE
-// different acts — Offline takes the inactive modes' chains out, Online brings the
-// entering mode's back.
+// Short on purpose: these share the count box, whose default 64px holds roughly a
+// dozen glyphs at the panel's smallest font before the shell's kit end-ellipsizes it.
+// The two directions read differently because they ARE different acts — Offline
+// takes the inactive modes' chains out, Online brings the entering mode's back.
 inline constexpr const char* kFxParkingReadout   = "parking FX";
 inline constexpr const char* kFxRestoringReadout = "restoring FX";