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/855bf2c36ffb4d4da4e4552b909937a0/_urls.json

@@ -0,0 +1,26 @@
+{
+  "detail_url": "https://oshwhub.com/xiao5333/F4fei-kong-shi-pei-DOBBYsi-zhou-",
+  "cover_url": "https://image.lceda.cn/pullimage/RRwEauGxYghYQS1fAS3tMkPs80AIa5MUbbA1ZJH6.jpeg",
+  "attachments": [
+    {
+      "name": "F4_DOBBY项目 BOOTLOADER.zip",
+      "url": "https://image.lceda.cn/attachments/2022/3/zq0hA2Q3VRqoFpu4Q166QlL96v0ZKFlWKMdxvwPS.zip",
+      "original_id": "32af98e68a7f44abb2429cb2b7b77545"
+    },
+    {
+      "name": "F4_DOBBY_Control.pdf",
+      "url": "https://image.lceda.cn/attachments/2022/3/vQoacRxZe1ZO4Yfsx3tgv4sfJUKN6N8ys7K1i6DJ.pdf",
+      "original_id": "c32745b8a25848ad8693854813821f21"
+    },
+    {
+      "name": "gerber_F4_DOBBY_Control.zip",
+      "url": "https://image.lceda.cn/attachments/2022/3/vsIh8KVMBcqNk5zo16SchG5CHfvhgJnwPmGXq0su.zip",
+      "original_id": "b0df6d33a3594fd88a0a3ca20673114b"
+    },
+    {
+      "name": "F4_DOBBY_Control.xlsx",
+      "url": "https://image.lceda.cn/attachments/2022/3/Rcxd2L6Dc7octLb0FYn5HRwSKm2RfFNLbD2gKn6a.xlsx",
+      "original_id": "42e6ef9715eb4a30b1f48204052aea68"
+    }
+  ]
+}