feat(i18n): l10n codegen — strings.json 单源生成 6 份 strings_*.dart

② 单源 codegen 落地:
- strings.json 补全 lists 段(days7/featsFree/featsPro/featsTeam),
  之前 extraction 漏了 4 个 List<String> getter;现 246 getter+4 list+5 method×6 语。
- design/codegen/gen_l10n_dart.mjs:strings.json → strings_{zh,en,ja,ko,ru,es}.dart,
  getter 转义 \$、method 保留 $var 插值,dart format 定型(保证漂移闸零 diff)。
- app_text.dart 保持手写(enum/abstract 声明/AppLangMisc 逻辑),编译器强制 concrete⊆abstract 兜底。
- 往返无损:生成的 Dart 重新抽取 == strings.json 逐字节一致;flutter analyze 0 issue、flutter test 244 全绿。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A79VtQA1BwTuQN1ThpvYpo

design/codegen/migrate_l10n_to_json.py

@@ -1,55 +1,75 @@
 #!/usr/bin/env python3
-# 从 6 份手写 strings_*.dart 抽取 l10n 到单源 JSON。只读,不改 Dart。
-import re, json, sys, os
+# 完整抽取 l10n → 单源 JSON:getters(String get) + lists(List<String> get) + methods(带参)。
+# 只读 Dart,不改。与已提交 strings.json 的 getters/methods 校验无回归,新增 lists 段。
+import re, json, os
 
 BASE = "/Users/wangjia/code/pangolin/.claude/worktrees/configurable-proxy/client/lib/l10n"
+OUT = "/Users/wangjia/code/pangolin/.claude/worktrees/configurable-proxy/design/i18n/strings.json"
 LANGS = ["zh", "en", "ja", "ko", "ru", "es"]
 
-# Dart 字符串字面量:单引号或双引号(各自允许 \ 转义);getter 与带参方法
 STR = r"""(?:'((?:[^'\\]|\\.)*)'|"((?:[^"\\]|\\.)*)")"""
+STR_RE = re.compile(STR)
 GET_RE = re.compile(r"String\s+get\s+(\w+)\s*=>\s*" + STR + r"\s*;")
 MET_RE = re.compile(r"String\s+(\w+)\(([^)]*)\)\s*=>\s*" + STR + r"\s*;")
+# List<String> get name => const [ ... ];  —— 跨行,惰性到第一个 '];'
+LIST_RE = re.compile(r"List<String>\s+get\s+(\w+)\s*=>\s*const\s*\[(.*?)\]\s*;", re.DOTALL)
+
 
 def unescape(s):
-    return s.replace("\\'", "'").replace('\\"', '"').replace('\\\\', '\\').replace('\\n', '\n').replace('\\$', '$')
+    return (s.replace("\\'", "'").replace('\\"', '"')
+             .replace('\\n', '\n').replace('\\$', '$').replace('\\\\', '\\'))
 
-getters = {}   # key -> {lang: val}
-methods = {}   # key -> {args, tpl:{lang:val}}
-counts = {}
 
+getters, lists, methods, counts = {}, {}, {}, {}
 for lang in LANGS:
-    path = os.path.join(BASE, f"strings_{lang}.dart")
-    src = open(path, encoding="utf-8").read()
-    g = 0
-    for m in GET_RE.finditer(src):
-        k = m.group(1); v = unescape(m.group(2) if m.group(2) is not None else m.group(3))
-        getters.setdefault(k, {})[lang] = v
-        g += 1
-    mm = 0
-    for m in MET_RE.finditer(src):
-        k = m.group(1); args = m.group(2).strip()
-        v = unescape(m.group(3) if m.group(3) is not None else m.group(4))
+    src = open(os.path.join(BASE, f"strings_{lang}.dart"), encoding="utf-8").read()
+    g = m = ln = 0
+    for mt in GET_RE.finditer(src):
+        k = mt.group(1)
+        v = unescape(mt.group(2) if mt.group(2) is not None else mt.group(3))
+        getters.setdefault(k, {})[lang] = v; g += 1
+    for mt in MET_RE.finditer(src):
+        k = mt.group(1); args = mt.group(2).strip()
+        v = unescape(mt.group(3) if mt.group(3) is not None else mt.group(4))
         methods.setdefault(k, {"args": args, "tpl": {}})
-        methods[k]["tpl"][lang] = v
-        mm += 1
-    counts[lang] = {"getters": g, "methods": mm}
+        methods[k]["tpl"][lang] = v; m += 1
+    for mt in LIST_RE.finditer(src):
+        k = mt.group(1); body = mt.group(2)
+        items = [unescape(a if a is not None else b) for a, b in STR_RE.findall(body)]
+        lists.setdefault(k, {})[lang] = items; ln += 1
+    counts[lang] = {"getters": g, "methods": m, "lists": ln}
 
-# 完整性校验:每个 key 六语齐全
+# 完整性:每 key 六语齐全
 missing = []
 for k, d in getters.items():
     for l in LANGS:
         if l not in d: missing.append(f"getter {k}:{l}")
+for k, d in lists.items():
+    for l in LANGS:
+        if l not in d: missing.append(f"list {k}:{l}")
 for k, d in methods.items():
     for l in LANGS:
         if l not in d["tpl"]: missing.append(f"method {k}:{l}")
 
-out = {"_note": "l10n 单源(唯一真相源)。codegen 生成 client/lib/l10n/strings_*.dart + app_text.dart + 原型读同源。勿手改生成物。",
-       "getters": getters, "methods": methods}
-os.makedirs("/Users/wangjia/code/pangolin/.claude/worktrees/configurable-proxy/design/i18n", exist_ok=True)
-outpath = "/Users/wangjia/code/pangolin/.claude/worktrees/configurable-proxy/design/i18n/strings.json"
-json.dump(out, open(outpath, "w", encoding="utf-8"), ensure_ascii=False, indent=2)
+# 与已提交 JSON 的 getters/methods 校验无回归
+old = json.load(open(OUT, encoding="utf-8")) if os.path.exists(OUT) else {}
+regress = []
+if old:
+    if set(old.get("getters", {})) != set(getters):
+        regress.append("getter 键集变化")
+    for k, d in old.get("getters", {}).items():
+        if getters.get(k) != d: regress.append(f"getter 值变化:{k}")
+    if set(old.get("methods", {})) != set(methods):
+        regress.append("method 键集变化")
 
-print("每语言抽取数:", counts)
-print(f"合并后:getters={len(getters)} methods={len(methods)}")
-print(f"缺失(应为0):{len(missing)}", missing[:5])
-print("输出:", outpath)
+out = {"_note": "l10n 单源(唯一真相源)。design/codegen/gen_l10n_dart.mjs 生成 client/lib/l10n/strings_*.dart;"
+                 "原型 serve.mjs 读同源。勿手改生成物;abstract 声明由 app_text.dart 手写(编译器强制 concrete⊆abstract)。",
+       "getters": getters, "lists": lists, "methods": methods}
+json.dump(out, open(OUT, "w", encoding="utf-8"), ensure_ascii=False, indent=2)
+
+print("每语言:", counts)
+print(f"合并:getters={len(getters)} lists={len(lists)} methods={len(methods)}")
+print(f"缺失(应0):{len(missing)}", missing[:5])
+print(f"回归(应0):{len(regress)}", regress[:5])
+print("lists 键:", list(lists))
+print("输出:", OUT)