fix(approval): auto-approve read-only tools in non-interactive mode (zeroclaw-labs#4094)

* fix(approval): auto-approve read-only tools in non-interactive mode

Add web_search_tool, web_fetch, calculator, glob_search, content_search,
and image_info to the default auto_approve list. These are read-only tools
with no side effects that were being silently denied in channel mode
(Telegram, Slack, etc.) because the non-interactive ApprovalManager
auto-denies any tool not in auto_approve when autonomy != full.

Closes zeroclaw-labs#4083

* fix: remove duplicate default_otp_challenge_max_attempts function

Author: theonlyhennygod

src/config/schema.rs

@@ -3939,7 +3939,16 @@ pub struct AutonomyConfig {
 }
 
 fn default_auto_approve() -> Vec<String> {
-    vec!["file_read".into(), "memory_recall".into()]
+    vec![
+        "file_read".into(),
+        "memory_recall".into(),
+        "web_search_tool".into(),
+        "web_fetch".into(),
+        "calculator".into(),
+        "glob_search".into(),
+        "content_search".into(),
+        "image_info".into(),
+    ]
 }
 
 fn default_always_ask() -> Vec<String> {