refactor: remove global state from fs module and use dispatcher

Co-authored-by: aider (deepseek/deepseek-coder) <aider@aider.chat>

fs.c

@@ -1,5 +1,6 @@
 #include "fs.h"
 #include "wav_io.h"
+#include "dispatcher.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -19,7 +20,6 @@ static pthread_mutex_t autosave_mutex = PTHREAD_MUTEX_INITIALIZER;
 static pthread_cond_t autosave_cond = PTHREAD_COND_INITIALIZER;
 static volatile bool autosave_running = false;
 static volatile bool autosave_pending = false;
-static AppState *g_state = NULL;
 static time_t last_autosave_time = 0;
 
 // Directory for autosave files
@@ -56,6 +56,10 @@ static void* autosave_thread_func(void *arg) {
         // Only autosave if at least 10 seconds have passed since last save
         time_t now = time(NULL);
         if (now - last_autosave_time >= 10) {
+            // Get current state from dispatcher
+            AppState state;
+            dispatcher_get_state(&state);
+            
             // Generate autosave filename with timestamp
             char filename[512];
             time_t t = time(NULL);
@@ -66,7 +70,7 @@ static void* autosave_thread_func(void *arg) {
                      tm->tm_hour, tm->tm_min, tm->tm_sec);
             
             // Save the project
-            fs_save_project(filename, g_state);
+            fs_save_project(filename, &state);
             last_autosave_time = now;
             
             // Remove old autosaves (keep last 10)
@@ -96,8 +100,7 @@ static void* autosave_thread_func(void *arg) {
     return NULL;
 }
 
-void fs_init(AppState *state) {
-    g_state = state;
+void fs_init(void) {
     autosave_running = true;
     autosave_pending = false;
     ensure_autosave_dir();

fs.h

@@ -4,7 +4,7 @@
 #include "dispatcher.h"
 
 // Initialize the auto-save thread
-void fs_init(AppState *state);
+void fs_init(void);
 
 // Cleanup the auto-save thread
 void fs_cleanup(void);

main.c

@@ -130,7 +130,7 @@ int main(int argc, char *argv[]) {
     free(initial_state);
     
     // Initialize filesystem module (auto-save thread)
-    fs_init(initial_state);
+    fs_init();
     
     // Initialize engine
     if (engine_init(&engine, client_name, dispatch) != 0) {