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/fac8abdbdb364d01882656f1b0c623e1/_urls.json

@@ -0,0 +1,26 @@
+{
+  "detail_url": "https://oshwhub.com/cgncm/STM32F722flightcontrol",
+  "cover_url": "https://image.lceda.cn/pullimage/ym6CqnvqqeKZfzSkCNxsY08mouXu2vIGgdJE630n.jpeg",
+  "attachments": [
+    {
+      "name": "betaflight_4.3.1_STM32F7X2.hex",
+      "url": "https://image.lceda.cn/attachments/2022/12/LPgHLLheku91iD6lhhDYEWdZYLwQHlB07Ai9Zy1R.txt",
+      "original_id": "dfe2d4ea59764401a249c484c1328de2"
+    },
+    {
+      "name": "WHF722  6M_6UART.config",
+      "url": "https://image.lceda.cn/attachments/2022/12/lOEizFBFHJ8r7LI04PwLLd3xCufLOiUb10vCttup.txt",
+      "original_id": "8c83eada2774436bb7a04fa7a68924d0"
+    },
+    {
+      "name": "WHF722  8M_5UART.config",
+      "url": "https://image.lceda.cn/attachments/2022/12/s8WHiswla5VXqrm8pk7wXlM5BlZjlKuc2MUKUF0c.txt",
+      "original_id": "353f45e663df438b807f86f52c829f08"
+    },
+    {
+      "name": "F7飞控打板文件.zip",
+      "url": "https://image.lceda.cn/attachments/2022/12/EdxkZyK84aAtlYo26vFmSJkdDI1vQtcK9lAwqMbX.zip",
+      "original_id": "c5fe9a76e69a4b2686288d1ae4ebb604"
+    }
+  ]
+}