fix(spoofer): redirect to .proc & add it to .gitignore

.gitignore

@@ -1,2 +1,3 @@
 build/
 .env
+.proc/

src/spoof/spoofer.c

@@ -20,7 +20,7 @@ FILE *fopen(const char *path, const char *mode) {
 
     if (path && strncmp(path, "/proc/", 6) == 0) {
         const char *rel_suffix = path + 1;
-        size_t len = strlen(rel_suffix) + 3;
+        size_t len = strlen(rel_suffix) + 4;
         char *new_path = malloc(len);
         if (!new_path) {
             fprintf(stderr, "proc_redirect: malloc failed\n");
@@ -28,7 +28,8 @@ FILE *fopen(const char *path, const char *mode) {
         }
         new_path[0] = '.';
         new_path[1] = '/';
-        strcpy(new_path + 2, rel_suffix);
+        new_path[2] = '.';
+        strcpy(new_path + 3, rel_suffix);
 
         FILE *f = real_fopen(new_path, mode);
         free(new_path);