v0.9.5 beta — full feature build ready for distribution

Core additions since initial commit:
- Platform-split MIDI (midi_linux.c / midi_windows.c)
- Patch system: save/load/scan, subdirectory navigation, favourites
- Config system: last MIDI device and CC mappings persisted to disk
- Custom embedded pixel font and sprite sheet (no loose asset files at runtime)
- Window icon embedded at runtime (SetWindowIcon) and in Windows .exe (windres)
- chdirToExeDir() in platform.c so double-click launch finds patches/ correctly
- About screen accessible from Master panel

UI polish:
- TITLE_BAR_H constant (20 px) — sprite buttons now fit inside title bars
- All title bar text, button overlay text, and close/active labels vertically centred
- Full-screen dim overlay computed from camera transform (no more partial coverage)
- Patch browser: folder navigation, breadcrumb title, 256-slot limit lifted

Build:
- Makefile auto-discovers sources; embeds sprites/font/icon via xxd rules
- Windows cross-compile: make PLATFORM=windows (mingw-w64 + windres)
- windows.h isolated in platform.c to avoid Rectangle/CloseWindow conflicts with raylib.h
- WIN_RES uses lazy = assignment so OBJ_DIR expands correctly for windres output path

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

patches/Chiptune/ChipBell.json

@@ -0,0 +1,50 @@
+{
+  "osc0_waveform": 4,
+  "osc0_dutyCycle": 0.500000,
+  "osc0_detune": 0.000000,
+  "osc0_gain": 3.500000,
+  "osc0_active": 1,
+  "osc0_octave": 0,
+  "osc0_modRouting0": 0,
+  "osc0_modRouting1": 0,
+  "osc0_modRouting2": 0,
+  "osc0_modDepth0": 0.000000,
+  "osc0_modDepth1": 0.000000,
+  "osc0_modDepth2": 0.000000,
+  "osc1_waveform": 4,
+  "osc1_dutyCycle": 0.500000,
+  "osc1_detune": 14.000000,
+  "osc1_gain": 0.500000,
+  "osc1_active": 1,
+  "osc1_octave": 1,
+  "osc1_modRouting0": 0,
+  "osc1_modRouting1": 0,
+  "osc1_modRouting2": 2,
+  "osc1_modDepth0": 0.000000,
+  "osc1_modDepth1": 0.000000,
+  "osc1_modDepth2": 2.000000,
+  "ampEnv_attack": 0.001000,
+  "ampEnv_decay": 1.400000,
+  "ampEnv_sustain": 0.000000,
+  "ampEnv_release": 0.300000,
+  "modEnv_attack": 0.001000,
+  "modEnv_decay": 0.060000,
+  "modEnv_sustain": 0.000000,
+  "modEnv_release": 0.030000,
+  "lfo0_rate": 1.000000,
+  "lfo0_waveform": 0,
+  "lfo0_active": 0,
+  "lfo1_rate": 1.000000,
+  "lfo1_waveform": 0,
+  "lfo1_active": 0,
+  "filter_cutoff": 20000.000000,
+  "filter_resonance": 0.000000,
+  "filter_type": 0,
+  "filter_active": 0,
+  "filter_modRouting": 0,
+  "filter_modDepth": 0.000000,
+  "filter_resModRouting": 0,
+  "filter_resModDepth": 0.000000,
+  "master_volume": 0.750000,
+  "master_pitchBendRange": 1.000000
+}