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/c5b584cc76684301b11c91798db939d2/description.md

@@ -0,0 +1,10 @@
+# 穿越机飞控飞固定翼 分电板带电流计
+
+穿越机飞控飞固定翼 分电板带电流计 带bec 
+双路分电板  10路 pwm  使用mini360 小翁实飞40公里
+
+---
+- Source: https://oshwhub.com/zl4430/fei-kong-dian-liu-ji
+- Author: 左手DIY (zl4430)
+- License: Public Domain
+- Published: 2024-03-29T08:08:36.000Z