feat(sources,organize): site agent capabilities and organize.minSizeBytes setting (W10-pre2)

- site.list / site.health_check / site.refresh_login / site.user_data capabilities
  over the W9-A site center services; outputs whitelisted (no secret refs,
  cookies, passwords, login names); execute kinds need automation grant.
  IDs use snake_case (CapabilityId regex); registry count 17 -> 21.
- settings.organize.minSizeBytes (default 50 MiB); file-manager identify /
  organize and planImport take request > setting > port default.
- tests and runbook notes (sites, files).

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/server/test/file-manager/harness.ts

@@ -144,7 +144,12 @@ export async function createFmHarness(
         const out: Record<string, unknown> = {};
         for (const k of Object.keys(DEFAULT_SETTINGS) as SettingsKey[]) {
           const v = stored.get(k);
-          out[k] = GlobalSettings.shape[k].parse({ ...DEFAULT_SETTINGS[k], ...((v as object) ?? {}) });
+          // 整理最小体积缺省跟随端口注入的 minVideoBytes(测试用小文件)
+          const base =
+            k === "organize"
+              ? { ...DEFAULT_SETTINGS.organize, minSizeBytes: overrides.ao?.options?.minVideoBytes ?? 10 }
+              : DEFAULT_SETTINGS[k];
+          out[k] = GlobalSettings.shape[k].parse({ ...base, ...((v as object) ?? {}) });
         }
         return out as GlobalSettings;
       },