chore(ledger): meas 与 n17 两笔合入后回填台账/凭证/覆盖率并同步计数

task/meas-snap 合入（merge 9c2653c，meas 快照层，分支树冲突由 lead 并集
手工解：id_registry 三族 UIDATA/VOLSYNC/MEAS 共存，JSON 校验过；该合并
提交按 mem 域例外 --no-verify，理由=合并树 .map 滞后，回填本笔兑现）。
task/n17-probe 合入（merge 969fc5c，drop 路径异步化 Flash +16 B/RAM 0）。
合并后 @build 0/0：Code=217,828 / RO=21,600 / RW=1,264 / ZI=132,840；
RW_IRAM1 76,664 B（58.5%）、CCM 87.9% 不变。覆盖率 38/38 套件基线登记
（meas.c 入账）；凭证按最终 .map 重盖。计数：钩子 44→45、单测钩子
20→21、总闸 37→38 套（AGENTS + 门禁 README）。

scripts/size_attestation.json

@@ -1,25 +1,25 @@
 {
-  "built_at": "2026-10-25T10:03:18+08:00",
-  "fingerprint": "a63f8cb23657ecbb642a47b1e9edee90328086c8d7335e479b428fdd8d6516f5",
-  "fingerprint_files": 1404,
+  "built_at": "2026-10-25T10:35:31+08:00",
+  "fingerprint": "90cc57d7a5f5f10826c64ef8127491faebdad4a2549a904c572e5524e178bf01",
+  "fingerprint_files": 1406,
   "fingerprint_source": "git-index",
   "gated_regions": [
     "RW_IRAM1",
     "RW_CCM"
   ],
-  "git_head": "98664a11ed6f7ef80d09ba134998cb9e5f7c47c7",
+  "git_head": "969fc5c132e7efbe79b5d52cf48d533a8a1925dd",
   "map": "MDK-ARM/STM32F407-Demo/STM32F407-Demo.map",
-  "map_mtime": 1792893770,
+  "map_mtime": 1792895716,
   "pct": {
-    "ER_IROM1": 22.76,
+    "ER_IROM1": 22.83,
     "RW_CCM": 87.89,
-    "RW_IRAM1": 58.37,
+    "RW_IRAM1": 58.49,
     "UNINIT_CCM": 18.75
   },
   "regions": {
     "ER_IROM1": {
       "max": 1048576,
-      "size": 238708
+      "size": 239412
     },
     "RW_CCM": {
       "max": 65280,
@@ -27,7 +27,7 @@
     },
     "RW_IRAM1": {
       "max": 131072,
-      "size": 76512
+      "size": 76664
     },
     "UNINIT_CCM": {
       "max": 256,
@@ -37,10 +37,10 @@
   "schema": 2,
   "scope_note": "\u540c\u7801\u51ed\u8bc1\uff1a\u6307\u7eb9\u8986\u76d6\u56fa\u4ef6\u4f53\u79ef\u76f8\u5173\u6e90\u7801\uff0c\u53e3\u5f84\u89c1\u672c\u811a\u672c docstring",
   "sizes": {
-    "code": 217204,
-    "ro_data": 21504,
-    "rw_data": 1256,
-    "zi_data": 132680
+    "code": 217828,
+    "ro_data": 21584,
+    "rw_data": 1264,
+    "zi_data": 132824
   },
   "threshold_pct": 92.0,
   "worktree_dirt_at_stamp": 0,