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/0e155b75aeec408e9341221affd9f174/source/manifest.json

@@ -0,0 +1,100 @@
+{
+  "project_uuid": "0e155b75aeec408e9341221affd9f174",
+  "fetched_at": "2026-04-30T10:50:05.942267+00:00",
+  "editor_version": "6.5.5",
+  "documents": [
+    {
+      "doc_uuid": "a577dfeece4b4dda86175f12660cb1c9",
+      "docType": 1,
+      "master": "d83d222d612e4a89951bf44fdd49f49a",
+      "path": "source/a577dfeece4b4dda86175f12660cb1c9.json",
+      "size": 27192,
+      "sha256": "317e9b26d464b40672376c04c6e5b191fc2803f8e7b6d421f0b47bac16a7d599"
+    },
+    {
+      "doc_uuid": "1d307ea548af4bc79f642735b52a8d2d",
+      "docType": 3,
+      "master": "dc871a525ce5425c980904c7d186b1d5",
+      "path": "source/1d307ea548af4bc79f642735b52a8d2d.json",
+      "size": 69501,
+      "sha256": "20bfa84464d2de5a88d06e5565f2e09da5cfd6857e8d4a9a697ceabc5d1f8c4d"
+    }
+  ],
+  "upstream_version_documents": [
+    {
+      "uuid": "a577dfeece4b4dda86175f12660cb1c9",
+      "title": "Sheet_1",
+      "description": "",
+      "docType": 1,
+      "master": "d83d222d612e4a89951bf44fdd49f49a",
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+    {
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+      "title": "PCB_100A电流计",
+      "description": "",
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+      "master": "dc871a525ce5425c980904c7d186b1d5",
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+}