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/6bb663af9d8b4ebe8ff124827eef99c3/metadata.json

@@ -0,0 +1,71 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/666666666666/kong-zhi-lei-fei-kong-lei-dian-yuan-lei-openmv-yi-ti-hua-shuang-hu-zhu-kong-ban",
+  "project_id": "6bb663af9d8b4ebe8ff124827eef99c3",
+  "title": "控制类+飞控类+电源类+openmv一体化双核主控板",
+  "description_short": "控制类+飞控类+电源类+openmv一体化双核主控板",
+  "description_path": "description.md",
+  "author": {
+    "username": "666666666666",
+    "display_name": "666666666666",
+    "user_id": "76d01e820f494414872cbb4c7d6d57de"
+  },
+  "license": "unknown",
+  "tags": [],
+  "created_at": "2019-07-30T12:19:40.000Z",
+  "updated_at": "2021-12-01T07:13:33.000Z",
+  "published_at": "2021-12-01T07:13:33.000Z",
+  "crawled_at": "2026-04-30T10:49:15.935417+00:00",
+  "metrics": {
+    "likes": 18,
+    "stars": 63,
+    "forks": 16,
+    "views": 9435,
+    "watch": 0,
+    "comments": 0
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/pullimage/gd8MHh08vlaCtmuIB2VX1CDmZHm2PJd3Qc2nhH3E.jpeg",
+    "path": null
+  },
+  "files": [
+    {
+      "name": "测试文档.docx",
+      "url": "https://image.lceda.cn/attachments/2019/8/vGHLxfCi94ivm6PzZQ7XOb7M3eRCrh8h3cSYgBoA.docx",
+      "original_id": "ed6657cb6d104bb1bc8ba6437d68338e",
+      "ext": "docx",
+      "mime": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+      "size": 2498921,
+      "md5": "41e1e922c19b1fe83900828991bccd5f"
+    }
+  ],
+  "raw_fields": {
+    "path": "666666666666/kong-zhi-lei-fei-kong-lei-dian-yuan-lei-openmv-yi-ti-hua-shuang-hu-zhu-kong-ban",
+    "grade": 2,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "180ab6677bd84e309e12cb680f870fde",
+      "docType": 1,
+      "master": "501886ad5498408f876c3d2e0bbd94fb",
+      "path": "source/180ab6677bd84e309e12cb680f870fde.json",
+      "size": 225543,
+      "sha256": "516be7a67a8670119e0310167b44b202d3d7498d36f2b560978c8db56a478cd6"
+    },
+    {
+      "doc_uuid": "188a5070edf2475ebf2fca4715865222",
+      "docType": 3,
+      "master": "998edde529824c5bb887c9896c9b2cbe",
+      "path": "source/188a5070edf2475ebf2fca4715865222.json",
+      "size": 611123,
+      "sha256": "cf1c16ffa7a45a3ff292611e96732252213f2e21d782cdd19cf0188cf9fd34ea"
+    }
+  ],
+  "editor_version": "6.2.31"
+}