add c and jai

c/config/config.h

@@ -0,0 +1,51 @@
+#pragma once
+// config.h — Global program configuration (config.ini next to binary)
+//
+// Stores internal program state: active theme, recent project directories,
+// and other preferences. This file is managed by the program, not the user.
+// Per-project settings belong in .editorconfig.
+
+#include "base/base_inc.h"
+
+////////////////////////////////
+// Constants
+
+#define CONFIG_MAX_RECENT_DIRS  10
+#define CONFIG_PATH_MAX         1024
+
+////////////////////////////////
+// Config state
+
+typedef struct Config {
+    char theme[64];                                    // active theme name
+    char recent_dirs[CONFIG_MAX_RECENT_DIRS][CONFIG_PATH_MAX]; // most recent first
+    S32  recent_dir_count;
+    B32  show_line_numbers;
+    B32  syntax_enabled;
+    B32  block_cursor;
+    B32  cursor_smear;
+    B32  smooth_scroll;
+    F32  ui_scale;
+    F32  editor_font_size;
+    char editor_font[64];          // "FiraCode", "JetBrains Mono", "Cascadia Mono"
+    char ui_font[64];              // "Inter", "FiraCode", etc.
+    S32  window_width;
+    S32  window_height;
+    char active_project[CONFIG_PATH_MAX];
+} Config;
+
+// Global config instance
+extern Config g_config;
+
+// Resolve the path to config.ini (next to the running binary).
+static void config_get_path(char *out, S32 out_size);
+
+// Load config from disk. Populates g_config. If the file doesn't exist,
+// writes a default one and returns defaults.
+static void config_load(void);
+
+// Save current g_config state to disk.
+static void config_save(void);
+
+// Push a directory to the front of the recent list (deduplicates).
+static void config_push_recent_dir(const char *dir);