state sync, many changes:

* separated css/js/rule files to pak file (glorified zip) to reduce full rebuilds
* implemented build cache
* some frontend UI spiffing up

app/desktop.py

@@ -8,8 +8,9 @@ import threading
 import webview
 
 import flask
+import fs.tree
 
-from pylocal import core, actions, desktop, dev, items, tick
+from pylocal import core, actions, desktop, dev, gamedata, items, tick
 
 core.desktop_mode = True
 sig_exit = threading.Event()
@@ -24,6 +25,7 @@ def index():
         core.render_base_context()
         core.base_context["scripts"].insert(0, core.app.url_for("static", filename="js/desktop-structuredclone.js"))
         core.base_context["scripts"].insert(1, core.app.url_for("static", filename="js/seagull-desktop.js"))
+    gamedata.vfs.copy_out("templates/main_page.j2", dest=core.path_appdir.as_posix())
     return flask.render_template("main_page.j2", **core.base_context)
 
 if __name__ == "__main__":
@@ -37,6 +39,9 @@ if __name__ == "__main__":
             storage_dir = pathlib.Path(os.environ["HOME"]) / ".local/share/seagull"
         desktop.path_storagedir = storage_dir
 
+        gamedata.vfs.load_data_source("basepak")
+        gamedata.vfs.load_data_source("seagull.pak", proto="zip")
+
         if argo.debug:
             desktop.api.debug_mode = True
         storage_dir.mkdir(exist_ok=True, parents=True)