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>

source/config.c

@@ -0,0 +1,91 @@
+#define _POSIX_C_SOURCE 200809L
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+#ifdef _WIN32
+#  include <direct.h>
+#  define MAKE_DIR(p) _mkdir(p)
+#else
+#  include <sys/stat.h>
+#  define MAKE_DIR(p) mkdir(p, 0755)
+#endif
+
+void configSanitizeName(const char *in, char *out, int maxLen)
+{
+    int i = 0;
+    for (; in[i] && i < maxLen - 1; i++) {
+        char c = in[i];
+        if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') ||
+            (c >= '0' && c <= '9') || c == '_' || c == '-')
+            out[i] = c;
+        else
+            out[i] = '_';
+    }
+    out[i] = '\0';
+}
+
+int configSaveLastDevice(const char *deviceName)
+{
+    MAKE_DIR(CONFIG_DIR);
+    FILE *f = fopen(CONFIG_DIR "/last_device.txt", "w");
+    if (!f) return 0;
+    fprintf(f, "%s\n", deviceName);
+    fclose(f);
+    return 1;
+}
+
+int configLoadLastDevice(char *out, int maxLen)
+{
+    FILE *f = fopen(CONFIG_DIR "/last_device.txt", "r");
+    if (!f) return 0;
+    int ok = (fgets(out, maxLen, f) != NULL);
+    fclose(f);
+    if (!ok) return 0;
+    int len = (int)strlen(out);
+    if (len > 0 && out[len - 1] == '\n') out[len - 1] = '\0';
+    return out[0] != '\0';
+}
+
+int configSaveCcMappings(const char *deviceName, ConfigCcEntry *entries, int count)
+{
+    MAKE_DIR(CONFIG_DIR);
+    char safe[CONFIG_NAME_LEN];
+    configSanitizeName(deviceName, safe, sizeof(safe));
+    char path[CONFIG_NAME_LEN + 32];
+    snprintf(path, sizeof(path), CONFIG_DIR "/cc_%s.cfg", safe);
+
+    FILE *f = fopen(path, "w");
+    if (!f) return 0;
+    for (int i = 0; i < count; i++)
+        fprintf(f, "%d %d %f %f\n",
+                entries[i].cc, entries[i].controlId,
+                entries[i].min, entries[i].max);
+    fclose(f);
+    return 1;
+}
+
+int configLoadCcMappings(const char *deviceName, ConfigCcEntry *entries, int maxCount)
+{
+    char safe[CONFIG_NAME_LEN];
+    configSanitizeName(deviceName, safe, sizeof(safe));
+    char path[CONFIG_NAME_LEN + 32];
+    snprintf(path, sizeof(path), CONFIG_DIR "/cc_%s.cfg", safe);
+
+    FILE *f = fopen(path, "r");
+    if (!f) return 0;
+    int count = 0;
+    while (count < maxCount) {
+        int   cc, id;
+        float mn, mx;
+        if (fscanf(f, "%d %d %f %f\n", &cc, &id, &mn, &mx) != 4) break;
+        if (cc >= 0 && cc < 128) {
+            entries[count].cc        = cc;
+            entries[count].controlId = id;
+            entries[count].min       = mn;
+            entries[count].max       = mx;
+            count++;
+        }
+    }
+    fclose(f);
+    return count;
+}