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/2f01fdb9fbaf499f8b537081ce3e4a66/metadata.json

@@ -46,5 +46,122 @@
     "public": true,
     "publish": true,
     "skipped_files": []
-  }
+  },
+  "source_format": "easyeda-pro-legacy",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "99d7798e0544491880fb29b28cc05e1a",
+      "docType": 1,
+      "path": "source/99d7798e0544491880fb29b28cc05e1a.json",
+      "size": 108239,
+      "sha256": "a07e3f0e240e788be1380be1a75e7be21bf36c6dfae03d2ab411060aa8efe09e"
+    },
+    {
+      "doc_uuid": "27e2f98e779b4303ab65ad2daf12f85b",
+      "docType": 1,
+      "path": "source/27e2f98e779b4303ab65ad2daf12f85b.json",
+      "size": 91456,
+      "sha256": "c2402c85e3752604aceb6a2a0000a878d44cb67755bc277c65dc7578c5feac90"
+    },
+    {
+      "doc_uuid": "fd8b9f076755411d8f83211da2f6ddd9",
+      "docType": 1,
+      "path": "source/fd8b9f076755411d8f83211da2f6ddd9.json",
+      "size": 109025,
+      "sha256": "ef3776a0ac88e41a0f70264bead624278bca8f918c77c34cd0f8bebca09a27f9"
+    },
+    {
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+      "docType": 1,
+      "path": "source/ca3354558c5f4be0815d325386ffe835.json",
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+      "sha256": "44a5a9a68c197c6ff53902cfc86820730c574a98ecfd82b40811863a3cfe65ec"
+    },
+    {
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+      "docType": 1,
+      "path": "source/72576c3a102b40289698512f791e512d.json",
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+      "sha256": "c5f67fd0e842b3ab55c59cfbdd64bdba873c22464af20a2c3dcfe3ba6836a66c"
+    },
+    {
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+      "sha256": "ac86537a60e932f038792b8dabfdb9c46522d1c9466738adbe60cc6ce88e81f5"
+    },
+    {
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+      "path": "source/cd1afcf6f3a0489799a1606ba14e3c4c.json",
+      "size": 52808,
+      "sha256": "341e4999f79060bbfed1e82a757b4b52eaef314342f1a961cc9b6b5a36c73d4f"
+    },
+    {
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+      "docType": 1,
+      "path": "source/8ff54b65e14d49f481abe4852857607a.json",
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+      "sha256": "59a205fc65dab9ef5ebfbb755270ccce1853f4b9ed4f1c58b79f7d034bee4d89"
+    },
+    {
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+      "docType": 1,
+      "path": "source/27828a076a944c9f9260a708bdaa5a2d.json",
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+      "sha256": "71990674c35d4dc99711d17746afba1ef442c6d42b12101193aeec18ca65d6f7"
+    },
+    {
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+      "sha256": "584ed0ac200be60c1861a760d26b5cca8d1fffce8aed20cdde5d6ab2db1986db"
+    },
+    {
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+      "path": "source/pcb_d5c9a81e62974c7d97935f821f5d522b.json",
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+    },
+    {
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+      "sha256": "bb774abcc6ca8a3db8af104800526f3a2af5da0ad6dd642dee30767ded40577c"
+    },
+    {
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+      "sha256": "f2a14e4a0f3ddb10557f07a28a617c9d42fb8611c72c8928fe2fd832a487c837"
+    },
+    {
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+      "sha256": "e9dfac0261e2a74767090198162f7f68823e32a2bc1fe7cc1877f60c91eb165c"
+    },
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+    },
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+      "size": 1355933,
+      "sha256": "888b8f06d25d8f7dffefb5acdce09840c61577e71ac599ecb4a28b404be2c7ae"
+    }
+  ],
+  "editor_version": "2.1.44.1"
 }