Form view: structured key/value editor (keys read-only, values editable; side-by-side desktop, stacked mobile) + testable strings-format.js

editor.py

@@ -7,6 +7,7 @@ Why stdlib only: no pip installs, one file to read, easy to see how it
 works. Routes:
 
     GET  /              -> the editor page (HTML)
+    GET  /strings-format.js -> .strings parse/serialize helpers (pure JS)
     GET  /file          -> current Localizable.strings + git dirty banner
     POST /save          -> write the file + plutil lint  {body: content}
     POST /save-build    -> write the file, then start a background build job
@@ -190,7 +191,8 @@ def start_build_job(content: str) -> str:
 # HTTP layer
 # --------------------------------------------------------------------------
 
-PAGE = (Path(__file__).with_name("index.html")).read_text(encoding="utf-8")
+PAGE = (Path(__file__).parent / "index.html").read_text(encoding="utf-8")
+FORMAT_JS = (Path(__file__).parent / "strings-format.js").read_text(encoding="utf-8")
 
 
 class Handler(BaseHTTPRequestHandler):
@@ -217,6 +219,9 @@ class Handler(BaseHTTPRequestHandler):
         if path in ("/", "/index.html"):
             self._send(200, PAGE.encode(), "text/html; charset=utf-8")
             return
+        if path == "/strings-format.js":
+            self._send(200, FORMAT_JS.encode(), "text/javascript; charset=utf-8")
+            return
         if path == "/file":
             if not self._authorized():
                 self._json(401, {"error": "token required"})