feat: add signal stats panel for selection region

Display Duration, Energy, Peak amplitude, RMS amplitude, and PAPR for
the current time/frequency selection. The stats box:
- Appears next to the selection box (right side, or left if not enough room)
- Centers vertically on the selection box
- Uses a semi-transparent dark background with yellow border
- Updates live while dragging the selection
- Computed in utils.c with ComputeSignalStats()

This commit is contained in:

Tyler

2026-05-24 22:49:44 -07:00

parent 0c64202670

commit cc58965acc

8 changed files with 241 additions and 8 deletions

.qwen/settings.json.orig

View File

@@ -0,0 +1,7 @@
 {
   "permissions": {
     "allow": [
       "Bash(make)"
     ]
   }
 }