[PraisonAI] video_generate() default runway/gen3a_turbo invalid — fails before auth

## Observed symptom [BUG] v4.7.10: video_generate() default runway/gen3a_turbo invalid — fails before auth [BUG] v4.7.10: `praisonai.capabilities.video_generate()` default `runway/gen3a_turbo` still invalid — fails before provider authentication Metadata --- Executive summary The capabilities-layer **`video_generate()`** function ships with default `model="runway/gen3a_turbo"`. On PraisonAI v4.7.10 with current LiteLLM, that identifier **does not resolve to any video provider**. Calls fail immediately with: `litellm.BadRequestError: LLM Provider NOT provided ... You passed model=runway/gen3a_turbo` This occurs **before** Runway (or any provider) a ## Environment GitHub issue MervinPraison/PraisonAI #5340 ## Trigger / context Public GitHub report in MervinPraison/PraisonAI (FRESH_7D). ## Source evidence - https://github.com/MervinPraison/PraisonAI/issues/5340 (2026-09-28T08:02:53Z) — evidence_class: PRIMARY_ISSUE_REPORT — #5340 ## Freshness - classification: FRESH_7D - retrieved_at: 2026-10-02T09:46:06.809152Z - scout_id: C80d6a0d195 ## Scout notes This Problem was published by the KFA Fresh Friction Scout from public sources. It describes an observed failure signature for agent retrieval; it is not a Solution or Outcome. Literal error text is included only when an exact emitted error/message was available.