legal: proprietary EULA + privacy policy; GPL terms retired

Licensing posture changes to closed-source commercial software (creator ruling 2026-10-30): free
tier caps output at 720p30, a paid licence unlocks 1080p ($10/month or $400 lifetime).

- LICENSE is now an End User License Agreement: grant, what you may do with your own content,
  no redistribution/reverse engineering, third-party components prevail, updates at publisher
  discretion, warranty and liability limits, termination, governing law.
- ADDITIONAL-TERMS.md deleted — those were GPL §7 terms and have no meaning under the EULA.
- THIRD-PARTY-NOTICES.txt keeps every third-party obligation and drops the GPL header and §6
  source offer; it states plainly that LlamaCasty ships no source.
- PRIVACY.md is new: exactly what is written locally (layout DB, DPAPI token, capped log,
  recordings you choose), what leaves the machine (Google's APIs only, with your account), and the
  standing promises (chat rendered never stored, no telemetry, no ad SDKs).
- README, docs/ai/product.md, docs/ai/decisions.md and TASKS.md record the decision and the
  obligations that still bind (ffmpeg LGPL as a separate process, OFL fonts, CC0 icons, model
  provenance, notices in the About screen).

Deliberately NOT decided here: key issuance/verification and the resolution gate itself. Earlier
GPL builds remain GPL for the versions that shipped under it.

docs/ai/decisions.md

@@ -4,7 +4,14 @@ One dated line per decision that **no longer governs**, plus the reason it died.
 you are about to re-open one of them. Live rules live in the subsystem files; this is the
 graveyard with cause of death.
 
-## Monetization — all superseded by the free-forever ruling (2026-10-08, TASK 54)
+## Monetization
+
+### 2026-10-30 — freemium replaces free-forever (creator ruling)
+
+Free tier caps output at **720p30**; **$10/month** or **$400 lifetime** unlocks 1080p. Reverses the
+2026-10-08 free-forever ruling below, which was a *current decision*, not an absolute.
+
+### Superseded: free forever (2026-10-08, TASK 54)
 
 - **2026-09-21** one-time perpetual licence `$29` founder → `$49` list — superseded 6 days later.
 - **2026-09-27** `$10/mo` subscription or `$400` lifetime, **no annual**. Store revenue share was