feat(library): verified CMU BVH mirror + 100STYLE + ACCAD sources in manifest

- cmu_bvh: una-dinosauria GitHub mirror of cgspeed 2010 MB-friendly
  conversion, download-tested (zip integrity + BVH parse), verified:true
- 100style: Zenodo CC-BY 4.0, verified:true
- accad_osu: CC-BY 3.0, verified:true
- license-zoned copies live in ~/Documents/MOTIONLIB (see its SOURCES.md)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

library/manifest.json

@@ -18,12 +18,31 @@
       "verified": false
     },
     {
-      "name": "cmu_asfamc_official",
-      "url": "TODO — http://mocap.cs.cmu.edu hosts per-subject zips (asf/amc); the community BVH conversions (cgspeed / MotionBuilder-friendly) move mirrors often. Find a live mirror, then: python3 library/fetch.py --url <zip> --name cmu_bvh",
-      "format": "asf/amc or bvh",
-      "license": "free for all uses incl. commercial (CMU asks for credit)",
-      "notes": "the bundled bonemaps/cmu_mb_to_mixamo.json matches the MotionBuilder-friendly BVH naming",
-      "verified": false
+      "name": "cmu_bvh",
+      "url": "https://codeload.github.com/una-dinosauria/cmu-mocap/zip/refs/heads/master",
+      "format": "bvh",
+      "license": "free for all uses incl. commercial (CMU asks for credit: 'The data used in this project was obtained from mocap.cs.cmu.edu. The database was created with funding from NSF EIA-0196217.')",
+      "unpack": true,
+      "notes": "GitHub mirror of the cgspeed/Bruce Hahne 2010 MotionBuilder-friendly BVH conversion (2548 clips, ~1.1GB zip / 3GB unpacked, bvh under data/<subject>/). Matches bonemaps/cmu_mb_to_mixamo.json naming. Verified 2026-07-17: zip integrity OK, 01_01.bvh parses (ROOT Hips, MB joint names). Already unpacked on ultra at ~/Documents/MOTIONLIB/green/cmu_bvh/. Daz-flavor alt mirror: https://outworldz.com/Secondlife/Posts/CMU/",
+      "verified": true
+    },
+    {
+      "name": "100style",
+      "url": "https://zenodo.org/api/records/8127870/files/100STYLE.zip/content",
+      "format": "bvh",
+      "license": "CC-BY 4.0 (commercial OK, attribution REQUIRED in shipped product — credit 100STYLE / Mason et al. 2022)",
+      "unpack": true,
+      "notes": "100 locomotion styles, 4M+ frames. Verified 2026-07-17 (Zenodo license field cc-by-4.0). ~1.47GB. On ultra at ~/Documents/MOTIONLIB/green/100style/.",
+      "verified": true
+    },
+    {
+      "name": "accad_osu",
+      "url": "https://accad.osu.edu/sites/accad.osu.edu/files/Male2_bvh.zip",
+      "format": "bvh",
+      "license": "CC-BY 3.0 Unported (commercial OK, attribution REQUIRED — 'Open Motion Project by ACCAD/The Ohio State University')",
+      "unpack": true,
+      "notes": "Also Female1_bvh.zip, Male1_bvh.zip, handspring_BVH.ZIP at same path (300 bvh total incl. martial arts). Verified 2026-07-17, zips tested. On ultra at ~/Documents/MOTIONLIB/green/accad/.",
+      "verified": true
     },
     {
       "name": "existing_mixamo_bank",