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/967b8688006d4add9cbe1ded0c078744/metadata.json

@@ -0,0 +1,71 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/balala-the-first/NUEDC-Drone",
+  "project_id": "967b8688006d4add9cbe1ded0c078744",
+  "title": "【2023电赛】电赛 · Drone-duino基于ESP32的无人机",
+  "description_short": "打造开发最高效和性能最强的电赛无人机方案！\n\n主控采用H743飞控，视觉采用MaixPy M1W和ESP32 OpenMV，控制中枢使用Arduino进行编程。",
+  "description_path": "description.md",
+  "author": {
+    "username": "balala-the-first",
+    "display_name": "巴啦啦一号",
+    "user_id": "cff193f2a00c4fd2860a6efadab984c4"
+  },
+  "license": "GPL 3.0",
+  "tags": [],
+  "created_at": "2023-05-19T10:53:05.000Z",
+  "updated_at": "2024-05-10T02:41:00.000Z",
+  "published_at": "2023-07-04T01:57:38.000Z",
+  "crawled_at": "2026-04-30T10:49:20.298223+00:00",
+  "metrics": {
+    "likes": 23,
+    "stars": 53,
+    "forks": 7,
+    "views": 9431,
+    "watch": 0,
+    "comments": 6
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/pullimage/aRRxpOqoNzNWj63wuC3s4jmniG1B8KxlCQxO97KA.jpeg",
+    "path": null
+  },
+  "files": [
+    {
+      "name": "video_20230603_104654(1).mp4",
+      "url": "https://image.lceda.cn/attachments/2023/7/P5mQgsY6BflwLCMaCz4dmbqIxFZIhIlWDq12xmDV.mp4",
+      "original_id": "8fb660146b9c44939e9a681184338fcb",
+      "ext": "mp4",
+      "mime": "video/mp4",
+      "size": 4421202,
+      "md5": "1e735690bda77a7a8094825230c13628"
+    }
+  ],
+  "raw_fields": {
+    "path": "balala-the-first/NUEDC-Drone",
+    "grade": 1,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "d876025141b14c0abd655b4cbb86e211",
+      "docType": 3,
+      "master": "1d3aa8328c3d4383a8f3a3d17dfed134",
+      "path": "source/d876025141b14c0abd655b4cbb86e211.json",
+      "size": 1646397,
+      "sha256": "b75d24fc2b21f63d3795f2675e4131906fdaeb62b918a5edfcc8df877fc902d6"
+    },
+    {
+      "doc_uuid": "e831e5326b7449d19b81be205a5ec8df",
+      "docType": 1,
+      "master": "42d07844438d493593343ad6d10352d0",
+      "path": "source/e831e5326b7449d19b81be205a5ec8df.json",
+      "size": 226966,
+      "sha256": "c94e5628862df27685b65381425a057248d899583dd1cef4f1393acca9c3d47d"
+    }
+  ],
+  "editor_version": "6.5.29"
+}