feat: enable autonomous mode by default

feat: deprecate -a/--autonomous flag
fix: prevent duplicate process execution in /auto command
fix: disable background monitoring by default
fix: add thread locks to prevent duplicate initialization
fix: remove duplicate detect_process_type function definition
fix: improve thread synchronization for global background services
fix: improve cleanup of background threads on exit
docs: update description in rp/__main__.py
docs: add note about autonomous mode in rp/commands/handlers.py
maintenance: update pyproject.toml version to 1.48.0
maintenance: update rp/__init__.py version to 1.47.1
refactor: sanitize json output in rp/core/assistant.py
refactor: use thread locks in rp/core/autonomous_interactions.py
refactor: use thread locks in rp/core/background_monitor.py
refactor: improve autonomous detection in rp/autonomous/detection.py
refactor: improve context initialization in rp/core/context.py

rp/tools/web.py

@@ -1,3 +1,4 @@
+import base64
 import imghdr
 import random
 import requests
@@ -68,7 +69,21 @@ def http_fetch(url: str, headers: Optional[Dict[str, str]] = None) -> Dict[str,
             return {"status": "success", "content": content[:10000]}
         else:
             content = response.content
-            return {"status": "success", "content": content}
+            content_length = len(content)
+            if content_length > 10000:
+                return {
+                    "status": "success",
+                    "content_type": content_type,
+                    "size_bytes": content_length,
+                    "message": f"Binary content ({content_length} bytes). Use download_to_file to save it.",
+                }
+            else:
+                return {
+                    "status": "success",
+                    "content_type": content_type,
+                    "size_bytes": content_length,
+                    "content_base64": base64.b64encode(content).decode("utf-8"),
+                }
     except requests.exceptions.RequestException as e:
         return {"status": "error", "error": str(e)}