Migrate the 2021 Symposium leftovers: rehome 22 Robotics files, move 11 "pt. 3 (Tools)" files (33 files) #21

• Series: Applied Active Inference Symposium
• Files: 33
• Estimated time: ~120 minutes
• Labels: good-first-issue, i16-translations

The legacy Translations/ folder of the 2021 Karl Friston symposium item holds two full language sets (de, es, fr, it, ja, ko, nl, pt, ru, zh-Hans, zh-Hant) of the 2nd Applied Active Inference Symposium on Robotics (2022) — a different event, misfiled here. The correct destination item exists with two parts (1st session zm2d9o5n0PU, 2nd session dTVHHenms_Y); this is a cross-item rehome. The same folder also holds 11 files for 'pt. 3 (Tools)' — an in-item move to part hW9IiOujS1E ('…1st Applied Active Inference Symposium, part 3 (.tools)').

Scope (from the triage doc, Part A):

• Item Applied Active Inference Symposium/2021 Symposium with Karl Friston → rehome into Applied Active Inference Symposium/2022 Symposium on Robotics
  • 11 files, stem 2nd Applied Active Inference Symposium on Robotics ~ 1st session → target translations/zm2d9o5n0PU.<bcp47>.srt
  • 11 files, stem 2nd Applied Active Inference Symposium on Robotics ~ 2nd session → target translations/dTVHHenms_Y.<bcp47>.srt
  • 11 files, stem Prof. Karl Friston ~ Applied Active Inference Symposium pt. 3 (Tools) → target translations/hW9IiOujS1E.<bcp47>.srt

Read first: docs/volunteer-transcript-tasks.md —
sections "The 30-minute task (per file)" and "Exact command pattern".

Steps, per file:

1. Verify the guessed video_id in the item's metadata.json + a YouTube spot-check of the part.
2. Confirm the language by opening the .srt (normalize legacy codes per the migration map).
3. Move with the two-step git mv into translations/<video_id>.<bcp47>.srt.
4. Append the original repo-relative path to the destination item's metadata.json previous_paths.
5. One path-scoped commit per item: translations(<series>): migrate <N> legacy files (I16 triage).

Acceptance criteria:

• every listed file moved (or deleted, if byte-identical to an already-migrated target) with previous_paths recorded
• no listed file remains in the item's Translations/ folder; empty Translations/ and translations_tmp/ removed
• spot-checked target files open as valid subtitles and match the verified part/language