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/91a69b9fbe8841cdb8d73c5bea93158d/metadata.json

@@ -0,0 +1,69 @@
+{
+  "source": "oshwhub",
+  "source_url": "https://oshwhub.com/airbus15/ist8310-luo-pan",
+  "project_id": "91a69b9fbe8841cdb8d73c5bea93158d",
+  "title": "IST8310外置罗盘",
+  "description_short": "用于航模的外置IST8310罗盘，使用I2C与飞控通信，可替代HMC5883、QMC5883等罗盘，用于多旋翼的精确悬停和自动返航。",
+  "description_path": "description.md",
+  "author": {
+    "username": "airbus15",
+    "display_name": "AIRBUS15",
+    "user_id": "83acabf1baa84c459694cba8906d7ee7"
+  },
+  "license": "GPL 3.0",
+  "tags": [],
+  "created_at": "2025-02-18T14:06:05.000Z",
+  "updated_at": "2025-09-02T11:11:42.836Z",
+  "published_at": "2025-09-03T01:52:19.000Z",
+  "crawled_at": "2026-04-30T10:49:18.439773+00:00",
+  "metrics": {
+    "likes": 1,
+    "stars": 6,
+    "forks": 6,
+    "views": 495,
+    "watch": 0,
+    "comments": 0
+  },
+  "cover": {
+    "url": "https://image.lceda.cn/oshwhub/pullImage/1755d09143a9401eabc0e0f51b5c0f81.jpg",
+    "path": null
+  },
+  "files": [],
+  "raw_fields": {
+    "path": "airbus15/ist8310-luo-pan",
+    "grade": 1,
+    "origin": "std",
+    "public": true,
+    "publish": true,
+    "skipped_files": []
+  },
+  "source_format": "easyeda-std",
+  "source_path": "source/",
+  "source_documents": [
+    {
+      "doc_uuid": "7c35132a421546bea954b40f352903b2",
+      "docType": 1,
+      "master": "017fdf4901d7480e859c369cdee11b58",
+      "path": "source/7c35132a421546bea954b40f352903b2.json",
+      "size": 34494,
+      "sha256": "9538f02d3a10a5aa5f7318e3ca6641d6a93024c0695aeb01df5b57761568fc1e"
+    },
+    {
+      "doc_uuid": "a8890fbf4e1b44f98aade704c6333001",
+      "docType": 3,
+      "master": "45f38b6df86947e9b3a35bf5b4c21ecd",
+      "path": "source/a8890fbf4e1b44f98aade704c6333001.json",
+      "size": 117749,
+      "sha256": "b61538cd62cbfc909d617f3b94a2483b76dc8c1a6cf2d37345f3a235b66fdedb"
+    },
+    {
+      "doc_uuid": "67a2dc9dc74d49a48b10f20b03c6a1d3",
+      "docType": 3,
+      "master": "96904a28b49245a08b020b95228e761b",
+      "path": "source/67a2dc9dc74d49a48b10f20b03c6a1d3.json",
+      "size": 108969,
+      "sha256": "07118f35ef4eaaf0cdbf562315fa1b617264b9c9c03a501ffbb300480650aa2c"
+    }
+  ],
+  "editor_version": "6.5.34"
+}