refactor(migration): 回填 Migration Phase Strategy 體系(PR-D)
A v3.0.1 把 orchestrator 的 11 個 phase 抽成可注入的 Phase 物件,B 仍是 1107 行單體、以 'phase_' . $current 字串魔法分派、completed 甚至 inline 在 tick() 裡。本 commit 對齊: 新增 13 檔 - includes/migration/interface-migration-phase.php - includes/migration/class-tmdo-migration-phase-base.php(log/get_managed_keys/ execute_bulk_pivot/values_loose_equal 等共用 helper) - includes/migration/phases/ 11 個 phase 類別 orchestrator 1107 → 640 行 - tick() 改 make_phase() 工廠 + $phase->execute($job) - 移除 final、self::ENTITY_TYPE → static::(A v3.3.0 late static binding) - 保留 B 原有的 '✓ %s (%.2fs)' 耗時 log(改為 tick 自行量測,A 版已簡化掉) - 公開介面(preflight/start/tick/get_status/cancel/resume/needs_attention/ cron_tick)經 diff 確認與 A 完全一致,呼叫端零影響 連帶 - Schema_Manager 補 table_exists 的 request-scoped cache 與 flush_table_exists_cache()(A v3.1.6 + v3.4.6),Phase 測試需要它 - back-compat 補 12 個 Phase 類別的 WPDO_ alias - 移植 MigrationPhaseTest + MigrationPhaseRemainingTest(527 行) 測試隔離差異(B 的 unit bootstrap 會載入 Member_Fields / Post_Fields, A 的不會):MigrationPhaseRemainingTest 的 setUp 需額外清空 Entity_Registry 與 wpdo_register_entity_fields listener,否則 install_schema 會真的走進 dbDelta。MigrationPhaseTest 的 interface 斷言改用 TMDO_ 正式名稱 (PHP 無法 class_alias 介面,且該契約是核心內部擴充點)。 unit 451 / integration 398 GREEN Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TbG1keQQ7XBa7qMQY16KCY
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@@ -113,6 +113,18 @@ $tmdo_class_aliases = array(
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'TMDO_Zone_Cold' => 'WPDO_Zone_Cold',
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'TMDO_Zone_Router' => 'WPDO_Zone_Router',
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'TMDO_Routing_Predicate' => 'WPDO_Routing_Predicate',
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'TMDO_Migration_Phase_Base' => 'WPDO_Migration_Phase_Base',
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'TMDO_Phase_Diagnose' => 'WPDO_Phase_Diagnose',
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'TMDO_Phase_Backup' => 'WPDO_Phase_Backup',
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'TMDO_Phase_Demote' => 'WPDO_Phase_Demote',
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'TMDO_Phase_Install_Schema' => 'WPDO_Phase_Install_Schema',
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'TMDO_Phase_Backfill_Bulk' => 'WPDO_Phase_Backfill_Bulk',
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'TMDO_Phase_Backfill_Unserialize' => 'WPDO_Phase_Backfill_Unserialize',
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'TMDO_Phase_Promote_Shadow' => 'WPDO_Phase_Promote_Shadow',
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'TMDO_Phase_Verify_Sample' => 'WPDO_Phase_Verify_Sample',
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'TMDO_Phase_Promote_Aeav' => 'WPDO_Phase_Promote_Aeav',
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'TMDO_Phase_Cleanup' => 'WPDO_Phase_Cleanup',
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'TMDO_Phase_Completed' => 'WPDO_Phase_Completed',
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'TMDO_Zone_Archive' => 'WPDO_Zone_Archive',
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'TMDO_Interceptor_Base' => 'WPDO_Interceptor_Base',
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'TMDO_Query_Interceptor_Base' => 'WPDO_Query_Interceptor_Base',
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