AI restrictions via Global uniques (with AI civFilter)

[Fanfblrik]

Summary

Reworks AI restriction uniques per review: they are now Global uniques (typically used with <for [AI player] Civilizations>), not ModOptions toggles.

Existing uniques (no new types)

Use in GlobalUniques.json:

• Cannot build [Settler] units <for [AI player] Civilizations>
• Cannot build [World Wonder] buildings <for [AI player] Civilizations>

New Global uniques

Unique	Typical usage
Always accepts white peace	<for [AI player] Civilizations>
Cities cannot be liberated	<for [AI player] Civilizations>
Cannot vote in World Congress	<for [AI player] Civilizations>
Cannot trade with [civFilter] Civilizations	Cannot trade with [Human player] Civilizations <for [AI player] Civilizations> (peace still allowed)
May not found a religion	<for [AI player] Civilizations>
Cannot spread religion to [civFilter] Civilizations	e.g. [City-States] / [Human player] + AI conditional
Cannot coup [civFilter] Civilizations	Cannot coup [City-States] Civilizations <for [AI player] Civilizations>
No XP from fighting [civFilter] Civilizations	No XP from fighting [AI player] Civilizations

Example jsons/GlobalUniques.json

{
  "name": "Global Uniques",
  "uniques": [
    "Always accepts white peace <for [AI player] Civilizations>",
    "Cities cannot be liberated <for [AI player] Civilizations>",
    "Cannot vote in World Congress <for [AI player] Civilizations>",
    "Cannot trade with [Human player] Civilizations <for [AI player] Civilizations>",
    "May not found a religion <for [AI player] Civilizations>",
    "Cannot spread religion to [City-States] Civilizations <for [AI player] Civilizations>",
    "Cannot spread religion to [Human player] Civilizations <for [AI player] Civilizations>",
    "Cannot coup [City-States] Civilizations <for [AI player] Civilizations>",
    "Cannot build [World Wonder] buildings <for [AI player] Civilizations>",
    "Cannot build [Settler] units <for [AI player] Civilizations>",
    "No XP from fighting [AI player] Civilizations"
  ]
}

Motivation

As reviewed: most restrictions generalize via existing Global uniques + AI civFilter conditionals. The two parameterized types that did not exist (Cannot spread religion to [civFilter], No XP from fighting [civFilter]) are added as Global uniques, along with a few parallel Global forms for diplomacy/religion.

ModOptions cannot carry conditionals and are not merged into getGlobalUniques(), so these belong in GlobalUniques.json.

Test plan

• Extension mod with GlobalUniques.json as above
• AI cannot train Settlers / World Wonders; humans can
• AI white peace accepted; AI↔human trade limited to peace
• AI cannot found/spread religion as configured; cannot coup CS
• No XP from fighting major AI
• Without the mod → vanilla behavior

[Fanfblrik]

Replacement for #15224 (closed while rewriting the branch). Implements the review feedback: Global uniques + <for [AI player] Civilizations> instead of ModOptions, plus the two new parameterized globals you mentioned.

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[github-actions]

Conflicts have been resolved.