Add Broadcast-CatchNetwork palette aligned with Catch Network master brand colours

palettes/broadcast/LT-Palette_Broadcast-CatchNetwork.gpl

@@ -0,0 +1,29 @@
+GIMP Palette
+Name: Broadcast - Catch Network
+Columns: 10
+#
+# ─── CORE BRAND ───
+0 119 255     Catch Blue
+0 207 255     Electric Cyan
+0 27 51       Deep Navy
+255 32 64     Signal Red
+255 179 0     Golden Amber
+
+# ─── NEUTRALS ───
+217 224 232   Light Steel
+43 43 43      Graphite Grey
+253 253 251   True White
+
+# ─── RETRO / HERITAGE ───
+0 179 164     CRT Teal
+133 59 206    Teletext Violet
+
+# ─── CHANNEL SUB-PALETTES ───
+0 119 255     Catch-1 Deep Blue
+255 179 0     Catch-1 Amber
+255 32 64     Catch-2 Signal Red
+43 43 43      Catch-2 Graphite
+0 207 255     Catch-3 Electric Cyan
+133 59 206    Catch-3 Teletext Violet
+255 179 0     Catch-4 Amber
+0 179 164     Catch-4 CRT Teal