String literals in benilla-assets, -blp, -protocol and -srp carry no record numbers (#291)

Part of #92, for the crates whose comment pass has landed and whose literals are few: `benilla-assets`, `benilla-blp`, `benilla-protocol` and `benilla-srp`.

- Assert messages, printed labels and a probe's error text drop their private record and bug numbers and the workspace's name for the maintainer. Each keeps its fact in its own words. One assert names a client function by its address, `0x68a830`, instead of a disassembler's label for it.
- Two terrain tests named after a bug number are renamed for what they check: `the_pin_stands_one_chunk_west_of_an_impassable_band` in `benilla-formats`, and `a_body_walking_east_from_the_pin_is_stopped_at_the_wall` in `benilla-world`. Those two crates' other literals follow in their own pass.
- Every change is to string-literal text, proven with comments stripped and every literal masked, except the two renamed tests.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

crates/benilla-protocol/examples/version_check_probe.rs

@@ -33,8 +33,8 @@ enum Arm {
 impl Arm {
     fn label(self) -> &'static str {
         match self {
-            Arm::Zeros => "zeros    (pre-1263)",
-            Arm::Computed => "computed (1263)   ",
+            Arm::Zeros => "zeros   ",
+            Arm::Computed => "computed",
         }
     }
 }

crates/benilla-protocol/src/bin/benilla-world/probes/quest_item.rs

@@ -178,7 +178,7 @@ impl Probe for QuestItem {
         )?;
         anyhow::ensure!(
             refusal == "13",
-            "--quest-item: expected QUEST_INVALID reason 13 (ALREADY_ON, the director's 0x0d), \
+            "--quest-item: expected QUEST_INVALID reason 13 (ALREADY_ON, 0x0d), \
              got {refusal}"
         );
         println!("✅ refusal: QUEST_INVALID reason 13 → ERR_QUEST_ALREADY_ON (the ref's 0x5dbca0)");

crates/benilla-protocol/src/messages/update_object/fields/tests.rs

@@ -308,7 +308,7 @@ fn player_bytes_3_byte_3_is_the_current_pvp_rank_not_the_highest() {
     assert_eq!(
         f.player_honor_rank(),
         None,
-        "the HIGHEST rank is a different field (1222) — absent means absent"
+        "the HIGHEST rank is a different field: absent means absent"
     );
     // A demoted player keeps the higher lifetime rank.
     let demoted = ObjectFields::from_pairs(&[(195, 0x03_00_00_00), (1222, 0x0B_00_00_00)]);