feat: add global unified context mode configuration and implementation

Co-authored-by: Soulter <37870767+Soulter@users.noreply.github.com>

astrbot/core/astr_main_agent.py

@@ -830,6 +830,33 @@ def _get_compress_provider(
     return provider
 
 
+def _apply_global_context_info(event: AstrMessageEvent, req: ProviderRequest) -> None:
+    """Add platform and session information to user prompt when in global unified context mode."""
+    from astrbot.core.config.default import GLOBAL_UNIFIED_CONTEXT_UMO
+
+    if event.unified_msg_origin != GLOBAL_UNIFIED_CONTEXT_UMO:
+        return
+
+    # Get original UMO from extras
+    original_umo = event.get_extra("original_umo")
+    if not original_umo:
+        return
+
+    # Parse the original UMO to extract platform, message type, and session info
+    try:
+        parts = original_umo.split(":", 2)
+        if len(parts) == 3:
+            platform_id, message_type, session_id = parts
+            context_info = f"[Context: Platform={platform_id}, Type={message_type}, Session={session_id}]"
+            # Prepend context info to the user prompt
+            if req.prompt:
+                req.prompt = f"{context_info} {req.prompt}"
+            else:
+                req.prompt = context_info
+    except Exception as e:
+        logger.warning(f"Failed to parse original UMO for global context: {e}")
+
+
 async def build_main_agent(
     *,
     event: AstrMessageEvent,
@@ -888,6 +915,9 @@ async def build_main_agent(
     if isinstance(req.contexts, str):
         req.contexts = json.loads(req.contexts)
 
+    # Apply global context information if enabled
+    _apply_global_context_info(event, req)
+
     if config.file_extract_enabled:
         try:
             await _apply_file_extract(event, req, config)

astrbot/core/config/default.py

@@ -17,11 +17,15 @@ WEBHOOK_SUPPORTED_PLATFORMS = [
     "lark",
 ]
 
+# Constant UMO for global unified context mode
+GLOBAL_UNIFIED_CONTEXT_UMO = "global::global"
+
 # 默认配置
 DEFAULT_CONFIG = {
     "config_version": 2,
     "platform_settings": {
         "unique_session": False,
+        "global_unified_context_mode": False,
         "rate_limit": {
             "time": 60,
             "count": 30,

astrbot/core/pipeline/waking_check/stage.py

@@ -72,11 +72,26 @@ class WakingCheckStage(Stage):
         )
         platform_settings = self.ctx.astrbot_config.get("platform_settings", {})
         self.unique_session = platform_settings.get("unique_session", False)
+        self.global_unified_context_mode = platform_settings.get(
+            "global_unified_context_mode", False
+        )
 
     async def process(
         self,
         event: AstrMessageEvent,
     ) -> None | AsyncGenerator[None, None]:
+        # apply global unified context mode
+        if self.global_unified_context_mode:
+            from astrbot.core.config.default import GLOBAL_UNIFIED_CONTEXT_UMO
+
+            original_umo = event.unified_msg_origin
+            event.unified_msg_origin = GLOBAL_UNIFIED_CONTEXT_UMO
+            # Store original UMO for reference in later stages
+            event.set_extra("original_umo", original_umo)
+            logger.debug(
+                f"Global unified context mode enabled. Changed UMO from {original_umo} to {GLOBAL_UNIFIED_CONTEXT_UMO}"
+            )
+
         # apply unique session
         if self.unique_session and event.message_obj.type == MessageType.GROUP_MESSAGE:
             sid = build_unique_session_id(event)