feat: typed team settings (cascade per-team → global → default) + in-game GUI

New fr.luc.crcore.team.config module:
- TeamSetting<T> (typed, with key/type/default/parser/serializer; factories
  ofBoolean/ofInt/ofString/ofEnum).
- TeamSettings registry: 8 standard settings (FRIENDLY_FIRE,
  PVP_PROTECTION_SECONDS, MAX_SIZE, MIN_SIZE, RESPAWN_AT_TEAM_SPAWN,
  TEAM_CHAT_ENABLED, SHOW_TAG_ABOVE_HEAD, TEAM_COLOR_IN_NAME), extensible
  via register() for game plugins.
- TeamConfigService interface with cascade get(team, setting) →
  per-team override (SQLite) → global YAML → hard default. Persists per-
  team via TeamRepository.save(), global via YamlConfiguration.save().
- YamlTeamConfigService default impl with bundled crcore-team-config.yml.

Storage:
- Team.getSettings() Map<String, Object> for per-team overrides.
- New SQLite table crcore_team_settings (team_id, key, value, type) with
  load + write-through persist in SqliteTeamRepository.
- Global YAML <plugin>-team-config.yml in dataFolder, auto-created at
  first boot (template from game plugin's resource of the same name
  takes priority).

New reusable GUI framework fr.luc.crcore.gui:
- AbstractInventoryGui (implements InventoryHolder, rebuild() abstract,
  setButton/setDecoration/clearSlot helpers, onClose hook, openTo()).
- GuiClickHandler FunctionalInterface.
- GuiListener (single Bukkit listener, detects via getHolder(), ALWAYS
  cancels clicks even on slots without handlers).
- GuiItems builder (named/of/filler + lore/amount/build, '&' color codes
  translated).

Concrete settings GUIs (fr.luc.crcore.team.config.gui):
- AbstractSettingsGui base renderer: 27 slots, settings in row 2,
  booleans = LIME_DYE / GRAY_DYE toggle, integers = BOOK with left +1 /
  right -1 (shift × 10), strings/enums display-only.
- GlobalSettingsGui: writes to YAML on each change.
- TeamSettingsGui: writes to per-team overrides, "override active" flag
  in lore when value differs from global, "Reset all overrides" footer
  button.

New /core team settings [team] subcommand:
- No arg → GlobalSettingsGui (perm crcore.team.settings.global).
- With arg → TeamSettingsGui (perm crcore.team.settings).
- Player-only (Bukkit needs HumanEntity to open inventory).
- Lives under /core team to stay modular (objective: split into modules
  later; everything team-related under /core team).

CRCore: buildTeamConfigService() override point, teamConfig()/getTeamConfig()
getters, GuiListener.registerOn(plugin) at enable(). CoreCommand,
TeamGroupSubCommand and CoreReloadSubCommand extended to receive
TeamConfigService. /core reload now reloads messages + broadcasts +
team-config.

Docs: new section 10 "Paramètres d'équipe", new decisions logged,
setup.md tree updated, two new diagrams (team-config + gui).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/README.md

@@ -36,6 +36,14 @@ d'initialisation côté plugin de jeu :
   templates. Un listener interne wire les 12 events natifs ; les game
   plugins peuvent broadcast leurs propres events. `/core reload` recharge
   les deux fichiers à chaud.
+- **Paramètres d'équipe** — `TeamConfigService` typé avec cascade
+  per-team → global → default. 8 settings standards
+  (`FRIENDLY_FIRE`, `MAX_SIZE`, etc.), étendable. Globaux dans
+  `<plugin>-team-config.yml`, per-team en SQLite. GUI in-game via
+  `/core team settings [team]`.
+- **Framework GUI** — `AbstractInventoryGui` + `GuiListener` réutilisable
+  pour tout GUI custom. Détection par holder, clic toujours annulé,
+  `GuiItems` builder fluide avec codes couleur `&`.
 - **Bootstrap unique** — `new CRCore(this).enable()` dans le `onEnable()`
   du plugin de jeu, et tout est branché.
 
@@ -62,6 +70,8 @@ d'initialisation côté plugin de jeu :
 | [database-diagram.puml](diagrams/database-diagram.puml) | Classe | Wrapper SQLite + table builder |
 | [messages-class-diagram.puml](diagrams/messages-class-diagram.puml) | Classe | Service de messages YAML |
 | [broadcasts-class-diagram.puml](diagrams/broadcasts-class-diagram.puml) | Classe | Service de broadcasts YAML + listener |
+| [team-config-class-diagram.puml](diagrams/team-config-class-diagram.puml) | Classe | Paramètres d'équipe (cascade + GUI) |
+| [gui-class-diagram.puml](diagrams/gui-class-diagram.puml) | Classe | Framework GUI réutilisable |
 | [bootstrap-sequence.puml](diagrams/bootstrap-sequence.puml) | Séquence | `CRCore.enable()` côté plugin de jeu |
 
 ## Conventions