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/oauth.rs

@@ -442,7 +442,7 @@ fn decode_hex(byte: u8) -> Result<u8, String> {
         b'0'..=b'9' => Ok(byte - b'0'),
         b'a'..=b'f' => Ok(byte - b'a' + 10),
         b'A'..=b'F' => Ok(byte - b'A' + 10),
-        _ => Err(format!("invalid percent-encoding byte: {byte}")),
+        _ => Err(format!("invalid percent byte: {byte}")),
     }
 }