Refactor: Remove security module and related functionality

- Deleted the `security` module and its associated files, including `daemon.rs` and `install.rs`.
- Removed references to security features in various modules, including `mod.rs`, `mode/mod.rs`, and `input.rs`.
- Updated the `MiscState` struct to eliminate security-related fields.
- Adjusted the `apply_action` function to remove security action handling.
- Increased the maximum limits for tool-only turns and agent steps in `actions/mod.rs`.
- Modified the review prompt to exclude security checks.
- Cleaned up the `git_operator` and `shell` tools to remove catastrophic guard checks.
- Removed internet-related tools and their references from the tool module.

src-misc/classifier-prompt.txt

@@ -11,7 +11,6 @@ Classification rules:
   DANGEROUS for destructive commands (rm -rf, dd, mkfs, >/dev/sdX)
 - git_operator: SAFE for status/log/diff/commit; DANGEROUS for
   force-push, reset --hard, clean -fdx, branch -D
-- web_download: DANGEROUS if target path is outside workspace
 - All other tools: SAFE by default
 
 Output exactly one word: SAFE, SUSPICIOUS, or DANGEROUS.