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/4579b351047f4acfb9bbc67e0204fc4e/metadata.json

@@ -0,0 +1,53 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/vinvaa/fei-kong-ge-ban-30x30",
+  "project_id": "4579b351047f4acfb9bbc67e0204fc4e",
+  "title": "飞控隔板30x30",
+  "description_short": "用于使飞控与电调之间隔开，避免被电调大功率运行时干扰飞控IMU MCU。同时保护飞控避免被电调点着/😂",
+  "description_path": "description.md",
+  "author": {
+    "username": "vinvaa",
+    "display_name": "vinvaa & xi0n9Fpv",
+    "user_id": "80d41c89c69c4000838f3ae0183265a6"
+  },
+  "license": "GPL 3.0",
+  "tags": [],
+  "created_at": "2023-02-03T16:03:19.000Z",
+  "updated_at": "2023-02-03T16:23:38.000Z",
+  "published_at": "2023-02-06T02:01:24.000Z",
+  "crawled_at": "2026-04-30T10:49:23.044090+00:00",
+  "metrics": {
+    "likes": 15,
+    "stars": 25,
+    "forks": 11,
+    "views": 2253,
+    "watch": 0,
+    "comments": 6
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/pullimage/yPPFpIHlKCY56Hsg0xZQ8CcEiBBTrWUIWjyEDx2G.jpeg",
+    "path": null
+  },
+  "files": [],
+  "raw_fields": {
+    "path": "vinvaa/fei-kong-ge-ban-30x30",
+    "grade": 1,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "29a4cc80796d4cdc958eb7f4b872b314",
+      "docType": 3,
+      "master": "faf329701b2449eab98b5edad1a6c9eb",
+      "path": "source/29a4cc80796d4cdc958eb7f4b872b314.json",
+      "size": 191012,
+      "sha256": "846af68a42a4cdecf039ad0d6533b9a3f7031763e0b751b1c5f4633e39f82a91"
+    }
+  ],
+  "editor_version": "6.5.23"
+}