wip: 2026-08-11 工作树快照（docs/memory/h5.py/scripts 等 447 项未评审改动，安全提交到 feat 分支）

_analyze_c.py

@@ -0,0 +1,15 @@
+import json, os, collections
+d = json.load(open('docs_cmp_result2.json', encoding='utf-8'))
+C = d['truly_missing']  # [path, mtime, size]
+print("C类总数:", len(C))
+grp = collections.defaultdict(list)
+for p, mt, sz in C:
+    top = p.split('\\')[0]
+    grp[top].append((p, sz))
+for top in sorted(grp, key=lambda k: -len(grp[k])):
+    items = grp[top]
+    print("\n### %s  (%d 个)" % (top, len(items)))
+    for p, sz in items[:8]:
+        print("   %s  (%dKB)" % (os.path.basename(p), sz // 1024))
+    if len(items) > 8:
+        print("   ... 其余 %d 个" % (len(items) - 8))