feat: ultraclaw session outputs — registry tests, MCP bridge, PARITY.md, cleanup

Ultraclaw mode results from 10 parallel opencode sessions:

- PARITY.md: Updated both copies with all 9 landed lanes, commit hashes,
  line counts, and test counts. All checklist items marked complete.
- MCP bridge: McpToolRegistry.call_tool now wired to real McpServerManager
  via async JSON-RPC (discover_tools -> tools/call -> shutdown)
- Registry tests: Added coverage for TaskRegistry, TeamRegistry,
  CronRegistry, PermissionEnforcer, LspRegistry (branch-focused tests)
- Permissions refactor: Simplified authorize_with_context, extracted helpers,
  added characterization tests (185 runtime tests pass)
- AI slop cleanup: Removed redundant comments, unused_self suppressions,
  tightened unreachable branches
- CLI fixes: Minor adjustments in main.rs and hooks.rs

All 363+ tests pass. Workspace compiles clean.

rust/crates/runtime/src/conversation.rs

@@ -847,7 +847,7 @@ mod tests {
                         AssistantEvent::MessageStop,
                     ])
                 }
-                _ => Err(RuntimeError::new("unexpected extra API call")),
+                _ => unreachable!("extra API call"),
             }
         }
     }
@@ -1156,7 +1156,7 @@ mod tests {
                             AssistantEvent::MessageStop,
                         ])
                     }
-                    _ => Err(RuntimeError::new("unexpected extra API call")),
+                    _ => unreachable!("extra API call"),
                 }
             }
         }
@@ -1231,7 +1231,7 @@ mod tests {
                             AssistantEvent::MessageStop,
                         ])
                     }
-                    _ => Err(RuntimeError::new("unexpected extra API call")),
+                    _ => unreachable!("extra API call"),
                 }
             }
         }
@@ -1545,7 +1545,6 @@ mod tests {
 
     #[test]
     fn auto_compaction_threshold_defaults_and_parses_values() {
-        // given / when / then
         assert_eq!(
             parse_auto_compaction_threshold(None),
             DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD