fix(static): tolerate missing asset references in collectstatic

WhiteNoise's manifest storage strictly resolves every referenced file
during collectstatic, including sourceMappingURL comments in vendored
JS bundles. A missing .map (financial/js/.../dashboard-free.js.map)
broke the prod container at startup. Add TolerantManifestStaticFilesStorage
which leaves unresolved references untouched instead of raising.

Co-authored-by: Cursor <cursoragent@cursor.com>

company_site/company_site/settings/base.py

@@ -147,7 +147,7 @@ STATIC_URL = "static/"
 STATIC_ROOT = BASE_DIR / "staticfiles"
 STORAGES = {
     "staticfiles": {
-        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
+        "BACKEND": "company_site.storage.TolerantManifestStaticFilesStorage",
     },
 }
 

company_site/company_site/storage.py

@@ -0,0 +1,20 @@
+"""Custom static files storage.
+
+WhiteNoise's manifest storage post-processes JS/CSS during ``collectstatic`` and
+strictly resolves every referenced file, including ``sourceMappingURL`` comments
+in vendored bundles. Some third-party assets reference ``.map`` files that are
+not shipped, which makes ``collectstatic`` fail hard.
+
+``TolerantManifestStaticFilesStorage`` leaves such unresolved references
+untouched instead of raising, so a missing source map can't break the build.
+"""
+
+from whitenoise.storage import CompressedManifestStaticFilesStorage
+
+
+class TolerantManifestStaticFilesStorage(CompressedManifestStaticFilesStorage):
+    def _stored_name(self, name, hashed_files):
+        try:
+            return super()._stored_name(name, hashed_files)
+        except ValueError:
+            return name