飞控-77: 74 std flight-controller projects ingested

Topic-pull from local listing index (`name OR introduction` contains
飞控). 77 std hits in oshwhub_listing_full.jsonl, minus 2 already
crawled = 75 attempted; 74 OK + 1 hard fail (`m1_mh743_ada_v4`,
listing entry missing `count.like`).

dev1 walltime: Step 1 ~12s, Step 4 ~80s (concurrency=5).
License mix: 65% GPL 3.0, 11% Public Domain, 11% MIT, 4% CC variants.

3 partial dirs (Step 1 KeyError on missing `count.like`) dropped — to
be re-fetched after a follow-up crawler patch makes count fields
defensive against listing-index outliers.

Source backfill 74/74 OK, total +46 MB.

data/raw/oshwhub/6d3086f16a3d4f01a45f227b562c7395/metadata.json

@@ -0,0 +1,69 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/hechuzhiyou/kong-xin-bei-AIOfei-kong-stm32f1",
+  "project_id": "6d3086f16a3d4f01a45f227b562c7395",
+  "title": "空心杯AIO飞控（stm32f103c8t6主控）",
+  "description_short": "修改https://oshwhub.com/death/naze32-kong-xin-bei-si-zhou大佬的排版能适配各种轴距的四轴但要自备机架和接收机",
+  "description_path": "description.md",
+  "author": {
+    "username": "hechuzhiyou",
+    "display_name": "hechuzhiyou",
+    "user_id": "21c9f77386284de19342972ac8fd9bba"
+  },
+  "license": "GPL 3.0",
+  "tags": [],
+  "created_at": "2022-01-29T09:02:18.000Z",
+  "updated_at": "2023-12-14T13:06:46.000Z",
+  "published_at": "2022-01-29T09:37:48.000Z",
+  "crawled_at": "2026-04-30T10:49:26.113648+00:00",
+  "metrics": {
+    "likes": 9,
+    "stars": 40,
+    "forks": 33,
+    "views": 8179,
+    "watch": 0,
+    "comments": 4
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/pullimage/cJET15dvFYBcIEeuIBFQoseQMjZvXCrfkVaxYG0x.jpeg",
+    "path": null
+  },
+  "files": [],
+  "raw_fields": {
+    "path": "hechuzhiyou/kong-xin-bei-AIOfei-kong-stm32f1",
+    "grade": 0,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "b91669e6c9f546f2b0b6af5bd9731c14",
+      "docType": 1,
+      "master": "ea0735a8d0cb417aae72a7cd458a8ea2",
+      "path": "source/b91669e6c9f546f2b0b6af5bd9731c14.json",
+      "size": 161820,
+      "sha256": "f6694115ba823f24f018b39b2588071ee6ce94d4c5775c8c0df6259a5500d70c"
+    },
+    {
+      "doc_uuid": "1bcac0d647684cf0aeba76655695c7c5",
+      "docType": 3,
+      "master": "5c5b555dec8f46e3ad918142fdab96e6",
+      "path": "source/1bcac0d647684cf0aeba76655695c7c5.json",
+      "size": 1210650,
+      "sha256": "c5716cc5910dabb2810c87c2e52237152b6fc6b284dd35cbab594f9e762e8a0d"
+    },
+    {
+      "doc_uuid": "464fd3c0f99e4c5094e1ad91a7dce458",
+      "docType": 3,
+      "master": "e1b1f6fcef3e4dbfb3a6530fd2648d12",
+      "path": "source/464fd3c0f99e4c5094e1ad91a7dce458.json",
+      "size": 512809,
+      "sha256": "a19f5418d5f45241b4ed5d15234c168f90130b2366c7add9c858a1f6dd08184d"
+    }
+  ],
+  "editor_version": "6.5.23"
+}