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/6aa77666cf3344fcb549249b24cf81e8/source/manifest.json

@@ -0,0 +1,84 @@
+{
+  "project_uuid": "6aa77666cf3344fcb549249b24cf81e8",
+  "fetched_at": "2026-04-30T10:50:28.395880+00:00",
+  "editor_version": "6.5.34",
+  "documents": [
+    {
+      "doc_uuid": "34bd4c04ec7e477db4d08ec7391e604b",
+      "docType": 1,
+      "master": "d80f12c686884d5da0a30f0fdf545454",
+      "path": "source/34bd4c04ec7e477db4d08ec7391e604b.json",
+      "size": 112922,
+      "sha256": "d9693e38ec37c2d433281758474422aacccb15aee9b85fa0721bd7ee02d26fd4"
+    },
+    {
+      "doc_uuid": "08fc493b216848fbafae127412212f7d",
+      "docType": 3,
+      "master": "ea2f2e2902414048b65e8d7c8fc275bb",
+      "path": "source/08fc493b216848fbafae127412212f7d.json",
+      "size": 372555,
+      "sha256": "e8c5e38c2e81b002bf81e4a70caf44a0740430436376e7b169ee5ba91ff88501"
+    }
+  ],
+  "upstream_version_documents": [
+    {
+      "uuid": "34bd4c04ec7e477db4d08ec7391e604b",
+      "title": "无人机上的stm32拓展板",
+      "description": "",
+      "docType": 1,
+      "master": "d80f12c686884d5da0a30f0fdf545454",
+      "thumb": "//image.lceda.cn/histories/d80f12c686884d5da0a30f0fdf545454.png",
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+      "title": "无人机上的stm32拓展板",
+      "description": "",
+      "docType": 3,
+      "master": "ea2f2e2902414048b65e8d7c8fc275bb",
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+}