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/4579b351047f4acfb9bbc67e0204fc4e/source/manifest.json

@@ -0,0 +1,31 @@
+{
+  "project_uuid": "4579b351047f4acfb9bbc67e0204fc4e",
+  "fetched_at": "2026-04-30T10:50:17.626888+00:00",
+  "editor_version": "6.5.23",
+  "documents": [
+    {
+      "doc_uuid": "29a4cc80796d4cdc958eb7f4b872b314",
+      "docType": 3,
+      "master": "faf329701b2449eab98b5edad1a6c9eb",
+      "path": "source/29a4cc80796d4cdc958eb7f4b872b314.json",
+      "size": 191012,
+      "sha256": "846af68a42a4cdecf039ad0d6533b9a3f7031763e0b751b1c5f4633e39f82a91"
+    }
+  ],
+  "upstream_version_documents": [
+    {
+      "uuid": "29a4cc80796d4cdc958eb7f4b872b314",
+      "title": "FC_GeBan",
+      "description": "",
+      "docType": 3,
+      "master": "faf329701b2449eab98b5edad1a6c9eb",
+      "thumb": "//image.lceda.cn/histories/faf329701b2449eab98b5edad1a6c9eb.png",
+      "components": [],
+      "updateTime": 1675440201,
+      "createTime": 1675440201,
+      "histories": [
+        "faf329701b2449eab98b5edad1a6c9eb"
+      ]
+    }
+  ]
+}