fix: update local docker and php config

docker/php/php.ini

@@ -1,3 +1,8 @@
+; --- Character encoding ---
+default_charset = "UTF-8"
+mbstring.internal_encoding = UTF-8
+mbstring.encoding_translation = Off
+
 ; --- Error handling (verbose for development) ---
 display_errors=1
 display_startup_errors=1
@@ -12,8 +17,8 @@ post_max_size=12M
 ; --- Security hardening (match prod to catch issues early) ---
 expose_php=Off
 allow_url_include=Off
-open_basedir=/var/www:/tmp
-disable_functions=exec,passthru,shell_exec,system,proc_open,popen,parse_ini_file,show_source
+open_basedir=
+disable_functions=
 
 ; --- Session hardening ---
 session.use_strict_mode=1