Action rework

[RANGROO]

⚠️ ALL PR'S MUST BE SUBMITTED TO THE UNSTABLE BRANCH ⚠️

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What

• Reworked the action system so built-in and imported custom actions share one catalog/runtime path.
• Added metadata-driven action requirements and cooldowns, so actions can be filtered by NPC type, state, activity, and other runtime conditions.
• Improved custom action import/editing:
  • safer import behavior with import_version
  • editable action config and parameter schema in the Action Editor
  • better filtering/sorting for built-in vs custom actions
  • carriage/ferry allowlists and similar settings moved out of conf.php into action-table config
• Added support for reusable mod actions through CHIM packages like CHIM-NFF, including renamed/cleaned action names and richer return templating.
• Added structured NPC activity/status support so prompts and UI can reflect what nearby/current NPCs are doing instead of relying on legacy event text.
• Added plugin-aware mod/form resolution support using a loaded-plugin manifest, so action requirements and description lookups can safely work with modded records.

Why

• The previous action flow was split across hardcoded server logic, connector-specific behavior, and ad hoc custom integrations.
• Custom actions were harder to extend, harder to configure, and easier to break or overwrite on re-import.
• Prompt action lists were too broad and not state-aware, so NPCs were often offered actions they could not or should not perform.
• Modded form/faction references were load-order-sensitive, which made action requirements and description resolution unreliable for large modlists.
• NPC status/context relied too heavily on one-off event text instead of structured game state.

Related PRs

• Related HerikaAI-NG changes for:
  • structured NPC activity/status sync
  • plugin manifest sync for mod-aware form resolution
  • barter/crafting/consume execution and feedback improvements
• Related aiagent-aiff changes for:
  • Action/CHIM Papyrus integration updates
  • CHIM-NFF bridge cleanup and action support

Notes

• This PR is part of the broader action_rework effort and is intended for the unstable branch.
• import_version is intentionally a simple first-pass safeguard: same-version reimports preserve local edits, while newer imports can still replace them.
• Action metadata is now the main extension point for requirements, config, parameter templates, and editor behavior.
• Some CHIM custom actions now depend on corresponding game-side bridge support being present in the deployed mod/plugin stack.