compact 직후 도구 결과 축약과 후속 루프 보강

- claw-code post-autocompact turn 흐름을 참고해 AX AgentLoop가 compact 직후 첫 턴의 도구 결과를 별도 정책으로 축약하도록 보강함

- process/build_run/test_loop/git/http 계열의 긴 결과는 head/tail 중심 post-compaction 요약으로 피드백해 freshly compacted context가 다시 커지는 현상을 줄임

- compact 로그 축약 건수와 compact 결과 축약 건수를 전체 통계에 반영하고 README.md, docs/DEVELOPMENT.md에 2026-04-05 00:24 (KST) 기준 이력을 추가함

- 검증: dotnet build src/AxCopilot/AxCopilot.csproj -c Release -v minimal -p:OutputPath=bin\\verify\\ -p:IntermediateOutputPath=obj\\verify\\ / 경고 0 / 오류 0

docs/DEVELOPMENT.md

@@ -1,6 +1,7 @@
 # AX Copilot - 媛쒕컻 臾몄꽌
 
 - Document update: 2026-04-05 00:17 (KST) - Upgraded the AX Agent loop to track the first post-compaction turn explicitly, mirroring claw-code's post-autocompact turn handling so compact-follow-up state now survives into the next loop turn instead of ending at the condenser call.
+- Document update: 2026-04-05 00:24 (KST) - Added compact-aware tool result trimming for the first post-compaction turn so heavy `process`, `build_run`, `test_loop`, `git_tool`, `http_tool`, and similar outputs are fed back to the loop as head/tail summaries instead of re-expanding the freshly compacted context.
 - Document update: 2026-04-05 00:17 (KST) - Added post-compaction thinking suppression for boilerplate loop events (`LLM request`, prompt submit, free-tier wait) during the first compact-follow-up turn, while still surfacing a compact-specific lightweight pill and compact-noise counts in total stats.