chore: remove compatibility field from various agent rules for consistency

.agents/rules/status-reporting.md

@@ -1,7 +1,6 @@
 ---
 name: status-reporting
 description: Generate work-item-aware standups and status summaries from current workspace memory, recent logs, and communication evidence.
-compatibility: opencode
 trigger: always_on
 glob: ""
 ---
@@ -24,4 +23,3 @@ Use this skill for standups, daily scrum updates, end-of-day summaries, and shor
 - Keep the report concise and ready to send.
 - Do not mention internal evidence sources unless the user asks.
 - Use `Blockers: None` only when no blocker is visible in current memory.
-