* feat(approvals): make dangerous command approval timeout configurable
Read `approvals.timeout` from config.yaml (default 60s) instead of
hardcoding 60 seconds in both the fallback CLI prompt and the TUI
prompt_toolkit callback.
Follows the same pattern as `clarify.timeout` which is already
configurable via CLI_CONFIG.
Closes#3765
* fix: add timeout default to approvals section in DEFAULT_CONFIG
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Co-authored-by: acsezen <asezen@icloud.com>