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/c132a9a400ea4ddbbae8fd499a587b10/description.md

@@ -0,0 +1,9 @@
+# NAZE32飞控的3寸穿越机
+
+一种尽可能便宜的穿越机入坑方案。
+
+---
+- Source: https://oshwhub.com/kaguyamokou/naze32-fei-kong-re_copy
+- Author: 蓬莱的树海 (kaguyamokou)
+- License: GPL 3.0
+- Published: 2023-07-03T01:32:31.000Z