batch-50: Step 3-4 source download from Guangzhou — 49/50 ok

Run on dev1 (Guangzhou) for the latency advantage. Walltime 3:41 vs
Singapore-estimated 1-2h (~30x speedup, mostly from image.lceda.cn
RTT going from 263ms to 2.6ms).

Pro 25:  24 ok + 1 fail (Super Dial 7f7565ef11 — Pro 2.x legacy
                          schematic/lists 401, separate cookie-perm issue)
         611 docs, 31 MB total
Std 25:  25 ok, 97 docs, 74 MB total
Combined: 49/50 success, 708 docs, 105 MB new disk usage

--max-source-mb 200 cap was not tripped; the 25 Pro candidates are all
under 10 MB, so the 481 MB X86-board outlier from the original sample
was not representative.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

data/raw/oshwhub/0369a515056840798905fdb26359073f/metadata.json

@@ -64,5 +64,66 @@
     "public": true,
     "publish": true,
     "skipped_files": []
-  }
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "c9dd9db413b847868452ca1bf6a0c22a",
+      "docType": 1,
+      "master": "d08640367178438ca5126bfa133b2036",
+      "path": "source/c9dd9db413b847868452ca1bf6a0c22a.json",
+      "size": 1426278,
+      "sha256": "d7dab8ccd08e03035a2d0bda1093b90e8f23bb57c9ed041e2fbdf9c2770d81ab"
+    },
+    {
+      "doc_uuid": "5263dc42ab8240b994b645a16aa595c1",
+      "docType": 3,
+      "master": "70e52381390d4174bc087958c773c3d9",
+      "path": "source/5263dc42ab8240b994b645a16aa595c1.json",
+      "size": 601934,
+      "sha256": "c8c5282779310469347b6eda92800364943e2f170e42a3cfa7ebfd6fe9740dfc"
+    },
+    {
+      "doc_uuid": "ee369c1cd3d34b85a15c2ae1ddb815c2",
+      "docType": 3,
+      "master": "ff1c5d92640e4d63a00a18d50908444a",
+      "path": "source/ee369c1cd3d34b85a15c2ae1ddb815c2.json",
+      "size": 470940,
+      "sha256": "f165d6b4cb208d503186b5ee51cd592cbc7fc3a031b2d87a25963d486f4cdcba"
+    },
+    {
+      "doc_uuid": "c65fc91640b9446f96228bc8ac35441a",
+      "docType": 3,
+      "master": "c1c100fcd4fd49309d1ad659b6a49797",
+      "path": "source/c65fc91640b9446f96228bc8ac35441a.json",
+      "size": 469591,
+      "sha256": "f995791a4f0c2cefa880f5d4b033d2582b5c2132340122f3cce120b9c0c1d5d1"
+    },
+    {
+      "doc_uuid": "17e455ff333542d6b2710f5638d7e90e",
+      "docType": 3,
+      "master": "9788720600ff4ce49e13cadb7b77a20c",
+      "path": "source/17e455ff333542d6b2710f5638d7e90e.json",
+      "size": 135626,
+      "sha256": "6ea0d607a2dd5665eedac72ad549cf6b77cca1c9397a4a7cb1e3f4488389341d"
+    },
+    {
+      "doc_uuid": "14294006b7c94e18af2e82b28326beea",
+      "docType": 1,
+      "master": "0e5842a46705447cb7c379a7b842fcb0",
+      "path": "source/14294006b7c94e18af2e82b28326beea.json",
+      "size": 1426278,
+      "sha256": "d7dab8ccd08e03035a2d0bda1093b90e8f23bb57c9ed041e2fbdf9c2770d81ab"
+    },
+    {
+      "doc_uuid": "b89c15fbb03d4f4692860c1e7634b73e",
+      "docType": 1,
+      "master": "d498190951574a17ae7197e27940a771",
+      "path": "source/b89c15fbb03d4f4692860c1e7634b73e.json",
+      "size": 1426278,
+      "sha256": "d7dab8ccd08e03035a2d0bda1093b90e8f23bb57c9ed041e2fbdf9c2770d81ab"
+    }
+  ],
+  "editor_version": "6.5.23"
 }