test(freeze): 增长冻结改盯耦合，行数降为粗护栏

Home() useState/useRef 与 JyotishAPIHandler 类方法/__new__ 不得增长。行数改为开工实测基线加余量。产品授权删除参数式 hook 零 React hook 规则。

tests/test_api_server_growth_contract.py

@@ -1,30 +1,81 @@
-"""Freeze scripts/jyotish_api_server.py growth.
+"""Freeze coupling in scripts/jyotish_api_server.py.
 
 New endpoints and features must live in new modules and be thinly registered
-from the main file. This cap is the live line count at freeze (11063 on
-2026-09-02, via `wc -l`) plus 300 lines of bugfix slack.
+from the main file. Line count is only a coarse guardrail; the live gates are
+JyotishAPIHandler method count and JyotishAPIHandler.__new__ forgery sites.
 """
 
 from __future__ import annotations
 
+import re
+from collections import Counter
 from pathlib import Path
 
 ROOT = Path(__file__).resolve().parents[1]
 API_SERVER = ROOT / "scripts" / "jyotish_api_server.py"
 AGENTS = ROOT / "AGENTS.md"
 
-# Live `wc -l scripts/jyotish_api_server.py` at freeze. New features must not
-# consume this budget; open a module instead.
-JYOTISH_API_SERVER_LINE_COUNT_BASELINE = 11063
+# Live `wc -l scripts/jyotish_api_server.py` equivalent:
+# Path.read_bytes().count(b"\n"), measured 2026-09-16 on origin/staging @ 51a65d92.
+# New features must not consume this budget; open a module instead.
+JYOTISH_API_SERVER_LINE_COUNT_BASELINE = 11291
 JYOTISH_API_SERVER_LINE_COUNT_CAP = JYOTISH_API_SERVER_LINE_COUNT_BASELINE + 300
 
+# Whole-file indent match `^    (?:async )?def \w+`, same count as
+# TASK-freeze-metric-change-20260915 §1. Measured 2026-09-16 @ 51a65d92.
+JYOTISH_API_HANDLER_METHOD_COUNT_BASELINE = 225
+
+# `JyotishAPIHandler.__new__` in scripts/ and tests/ `*.py`, excluding this file.
+# Measured 2026-09-16 @ 51a65d92: scripts/ production forgeries = 4, tests/ = 29.
+JYOTISH_API_HANDLER_NEW_COUNT_BASELINE = 33
+
+HANDLER_METHOD_RE = re.compile(r"^    (?:async )?def \w+", re.MULTILINE)
+NEW_MARKER = "JyotishAPIHandler.__new__"
+
+
+def _handler_method_count(source: str) -> int:
+    return len(HANDLER_METHOD_RE.findall(source))
+
+
+def _new_hits() -> Counter[str]:
+    hits: Counter[str] = Counter()
+    skip = Path(__file__).resolve()
+    for folder in (ROOT / "scripts", ROOT / "tests"):
+        for path in sorted(folder.rglob("*.py")):
+            if path.resolve() == skip:
+                continue
+            count = path.read_text(encoding="utf-8").count(NEW_MARKER)
+            if count:
+                hits[path.relative_to(ROOT).as_posix()] = count
+    return hits
+
+
+def test_jyotish_api_handler_method_count_must_not_grow() -> None:
+    source = API_SERVER.read_text(encoding="utf-8")
+    count = _handler_method_count(source)
+    assert count <= JYOTISH_API_HANDLER_METHOD_COUNT_BASELINE, (
+        f"{API_SERVER.as_posix()} has {count} four-space def methods; "
+        f"cap is {JYOTISH_API_HANDLER_METHOD_COUNT_BASELINE}. Move behaviour "
+        "into a dedicated module; thinly registered from this file."
+    )
+
+
+def test_jyotish_api_handler_new_count_must_not_grow() -> None:
+    hits = _new_hits()
+    total = sum(hits.values())
+    listed = ", ".join(f"{path}:{count}" for path, count in sorted(hits.items()))
+    assert total <= JYOTISH_API_HANDLER_NEW_COUNT_BASELINE, (
+        f"{NEW_MARKER} appears {total} times under scripts/ and tests/; "
+        f"cap is {JYOTISH_API_HANDLER_NEW_COUNT_BASELINE}. Hits: {listed}"
+    )
+
 
 def test_jyotish_api_server_must_not_grow_beyond_bugfix_slack() -> None:
     line_count = API_SERVER.read_bytes().count(b"\n")
     assert line_count <= JYOTISH_API_SERVER_LINE_COUNT_CAP, (
         f"{API_SERVER.as_posix()} has {line_count} lines; cap is "
         f"{JYOTISH_API_SERVER_LINE_COUNT_CAP} ({JYOTISH_API_SERVER_LINE_COUNT_BASELINE} "
-        "baseline + 300 bugfix slack). New endpoints and features must be new "
+        "baseline + 300 coarse guardrail). New endpoints and features must be new "
         "modules, thinly registered from this file."
     )