[Server/Client/Protocol] Reporting users + moderation queue functionality (#7091)

* [Server/Client/Protocol] Reporting users + moderation queue functionality

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* CI Fix

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* CI Fix

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* [Protocol] Add moderation investigation commands

Adds the protocol layer for the moderation investigation suite:
- Command_GetUserSessions/GetUserAlts/GetModeratorLastLogins/ResetUserPassword/RemoveUserAvatar (1013-1017)
- Response extensions 1215-1219 with ServerInfo messages for sessions, alts, and staff logins
- last_login on Response_ReportUserInfo and warning_il on Response_WarnList

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* [Utility] Add warning categories parser with infraction levels

Parses the server's 'officialwarnings' setting (comma-separated, optional
'|IL' suffix) into WarningCategory structs so the client can display the
infraction level of each warning category. Includes GTest coverage.

* [Server] Add moderation investigation tools

Implements the server side of the moderation suite:
- getUserSessions/getUserAlts/getModeratorLastLogins/removeUserAvatar DB methods
- Handlers for all five new commands with audit records (PASSWORD_RESET,
  REMOVE_USER_AVATAR); password resets return a generated temporary password
- cmdGetWarnList now reports per-category infraction levels from the
  officialwarnings setting; cmdReportUserInfo reports last_login
- Update servatrice.ini.example with the warning taxonomy
- Password/avatar mutations report RespNameNotFound when the user does not exist

* [Client] Add moderation tab with investigate, password reset, and avatar removal

- New Moderation tab: search a user to show account info, alternate
  accounts, login sessions, and staff last logins; actions to reset the
  user's password (shows the generated temporary password) and remove the
  user's avatar
- 'Investigate user' entry in the user context menu opens the tab pre-loaded
  for that user
- Warning dialog shows the infraction level of each warning category
- Tab wired into TabSupervisor with a moderator-gated menu action, shortcut,
  and tabs.ini persistence (default closed)

* [Server/Client/Protocol] Address PR #7091 review: security, bug, and perf fixes

Security:
- Promote RESET_USER_PASSWORD to admin-only dispatch (was moderator-accessible)
- Reject password reset on users with equal/higher privilege than caller
- Notify affected user via Event_NotifyUser::CUSTOM when password is reset
- Add server-side category whitelist for reports
- Drop reporter name fallback in comment/details authorization (ID-only)
- Force password change: new DB column + login enforcement + client disconnect

Bugs:
- XSS via QTextEdit::append() → insertPlainText() in report tab and utils
- allNotified initialized to true even with empty recipients list
- Warning combo box: use currentData() instead of baked-in display text
- Report resolution now records who resolved (resolved_by column + audit)

Performance:
- IP-correlation subquery: add 6-month window + LIMIT 200
- getUserSessions: clamp limit to 500

Non-blocking:
- Palette-aware colors in report_utils.cpp (dark/light mode)
- Report list pagination: offset/limit fields + total_count in response
- SessionCommand enum gap comment for reserved values 1201-1203

Schema: 36→37 (force_password_change), 37→38 (resolved_by)

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* Fix macOs pedantry

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---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

libcockatrice_protocol/libcockatrice/protocol/pb/moderator_commands.proto

@@ -14,6 +14,17 @@ message ModeratorCommand {
         ADD_CARD_ART_RULE = 1010;
         REMOVE_CARD_ART_RULE = 1011;
         LIST_CARD_ART_RULES = 1012;
+        GET_USER_SESSIONS = 1013;
+        GET_USER_ALTS = 1014;
+        GET_MODERATOR_LAST_LOGINS = 1015;
+        RESET_USER_PASSWORD = 1016;
+        REMOVE_USER_AVATAR = 1017;
+        REPORT_LIST = 1200;
+        REPORT_ASSIGN = 1201;
+        REPORT_RESOLVE = 1202;
+        REPLAY_DOWNLOAD_BY_GAME_ID = 1203;
+        REPORT_USER_INFO = 1204;
+        REPORT_STATS = 1205;
     }
     extensions 100 to max;
 }
@@ -135,3 +146,31 @@ message Command_ListCardArtRules {
         optional Command_ListCardArtRules ext = 1012;
     }
 }
+
+message Command_GetUserSessions {
+    extend ModeratorCommand {
+        optional Command_GetUserSessions ext = 1013;
+    }
+    optional string user_name = 1;
+    optional uint32 limit = 2 [default = 110];
+}
+
+message Command_GetUserAlts {
+    extend ModeratorCommand {
+        optional Command_GetUserAlts ext = 1014;
+    }
+    optional string user_name = 1;
+}
+
+message Command_GetModeratorLastLogins {
+    extend ModeratorCommand {
+        optional Command_GetModeratorLastLogins ext = 1015;
+    }
+}
+
+message Command_RemoveUserAvatar {
+    extend ModeratorCommand {
+        optional Command_RemoveUserAvatar ext = 1017;
+    }
+    optional string user_name = 1;
+}