agent: Add more Rust code examples, update TODO check (#28737)

Release Notes:

- N/A

crates/eval/examples/add_arp_protocol_support/criteria.md

@@ -0,0 +1,16 @@
+1. **Protocol Enumeration:** Ensure the `Protocol` enum includes the `ARP` variant and is integrated in `Protocol::ALL`.
+2. **Packet Analysis Logic:**
+   - Properly detect ARP packets within `analyze_headers` and `analyze_network_header`.
+   - Appropriately extract ARP sender/target IPs based on the protocol (IPv4 or IPv6).
+   - Track and store ARP operations (Request, Reply) using the `ArpType` enum.
+3. **Display & User Interface:**
+   - Accurately represent ARP packet types in the UI (`connection_details_page.rs`) alongside ICMP types.
+   - Skip displaying service information for ARP packets in line with ICMP behavior.
+4. **Data Struct Enhancements:**
+   - Update `InfoAddressPortPair` to store and count ARP operation types.
+   - Ensure filtering and presentation logic uses ARP data correctly.
+5. **Default Behaviors:**
+   - Set default `protocol` in `PacketFiltersFields` to `ARP` for consistency.
+6. **Testing:**
+   - Update unit tests for `Protocol::ALL` and `get_service` to account for ARP behavior.
+   - Confirm that ARP protocol toggling works properly in the GUI protocol filter handling.