v0.247.0: i18n spike — the dashboard can speak English, Hungarian byte-identical

Message bundles (internal/i18n) expanded into templates before parsing, one
template set per language. Launcher, /backups, /apps/<slug> and the layout
converted; household language setting, POST /settings/language, ?lang= override,
report field. Parity test against fixtures captured from unconverted templates;
copy gates read templates expanded; new i18n_missing_gate.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

controller/scripts/emoji_gate.py

@@ -7,6 +7,9 @@ Exit 1 if any emoji/pictograph remains in web+setup templates.
 """
 import io, os, sys, unicodedata
 
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+import i18n_bundle  # noqa: E402
+
 ROOTS = [
     os.path.join("internal", "web", "templates"),
     os.path.join("internal", "setup", "templates"),
@@ -35,8 +38,19 @@ ALLOW = set("✓✗✔✘•●○■▶")  # ✓ ✗ ✔ ✘ • ● ○ ■
 
 
 def scan(path):
+    # v0.247.0: the copy of a converted template lives in the i18n bundle -- scan every language's
+    # expansion, so an emoji in a translation is caught where it would render.
     hits = []
-    for lineno, line in enumerate(io.open(path, encoding="utf-8"), 1):
+    for lang in i18n_bundle.LANGS:
+        for h in _scan_text(i18n_bundle.read_template(path, lang)):
+            if h not in hits:
+                hits.append(h)
+    return hits
+
+
+def _scan_text(text):
+    hits = []
+    for lineno, line in enumerate(text.split("\n"), 1):
         for ch in line:
             if ch in ALLOW:
                 continue