refactor(status): move active-state projections into bounded module

[huangruiteng]

Change

Q4 fourth status extraction slice: active-state projections move into loopx/control_plane/status/active_state_projection.py:

• state_event_log_candidates
• active_state_event_projection_fields
• active_state_sections
• parse_issue_meta_surface
• active_state_section_entries
• backlog_hygiene_warning
• autonomous_replan_obligation

loopx.status keeps the public compatibility functions as thin local wrappers.

Surfaces

• loopx/control_plane/status/active_state_projection.py: new bounded status projection module.
• loopx/status.py: facade wrappers delegate to the bounded module.

Validation

• Full pytest: 2306 passed, 2 skipped; one unrelated extension timeout test was flaky under full load and passed on isolated rerun.
• Focused active-state/replan/status/import-boundary/maintainability: 25 passed.
• Ruff: All checks passed.
• loopx canary premerge --from-git-diff: passed, selected=17 failures=0, self_merge_allowed=true.

No manual holds.

Routing

Route: codex-side-bypass; not assigned to codex-quality-qualification.

[huangruiteng]

Review: APPROVED

head 7f7e075dd。这是对 PR #2971 的完整 owner review。该 PR 是 M6 Q4 的第四片真实替换：active-state 文本投影与 backlog/replan 提醒迁入 loopx/control_plane/status/active_state_projection.py，loopx.status 保留薄兼容壳。

验证

• 全量 pytest：2306 passed, 2 skipped；一个无关 extension timeout 测试在全量负载下 flake，单独复跑通过
• 聚焦 active-state/replan/status + import-boundary + maintainability ratchet：25 passed
• ruff：通过
• loopx canary premerge --from-git-diff：selected=17 failures=0，self_merge_allowed=true
• GitHub checks：dependency-review / pytest / build 全部通过

结论

无 blocker。active-state projection 现在位于 bounded status context，公共 facade 行为保持。按仓库 merge policy 路由合并。