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/5089e537f97d4be1a13252fb120f9962/description.md

@@ -0,0 +1,9 @@
+# 2021年G题-植保飞行器+380844A
+
+2021年电赛G题植保飞行器，国二。飞控使用TM4C12G与匿名凌霄IMU，视觉使用OPENMV。
+
+---
+- Source: https://oshwhub.com/ni-kan-wo-shuo-di-dui-fou-dui/2021-niang-ti-zhi-bao-fei-xing-qi
+- Author: 你看我说的对不队 (ni-kan-wo-shuo-di-dui-fou-dui)
+- License: CC-BY-NC-SA 3.0
+- Published: 2022-07-03T04:59:51.000Z