feat: add generated scene skill platform hardening

docs/superpowers/reports/2026-04-18-g3-second-round-expansion-report.md

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+# G3 Second-Round Expansion Report
+
+## Scope
+
+This round takes `G3` beyond the first expansion fixture and lands two additional repo-local expansion baselines from the `95598/工单家族候选` batch direction.
+
+Added fixtures:
+
+1. `tests/fixtures/generated_scene/paginated_enrichment_expansion_workorder`
+2. `tests/fixtures/generated_scene/paginated_enrichment_expansion_orderno`
+
+## Contract Variants Added
+
+The second round explicitly validates two more `G3` join-key and pagination variants:
+
+1. `pageNo + workOrderNo + aggregate:sourceType`
+2. `page + orderNo + aggregate:sourceType`
+
+## Delivered
+
+Updated:
+
+1. `tests/fixtures/generated_scene/p1_family_manifest.json`
+2. `tests/fixtures/generated_scene/p1_family_results.json`
+3. `tests/scene_generator_p1_family_test.rs`
+4. `tests/scene_generator_test.rs`
+
+## Validation
+
+Passed:
+
+1. deterministic analysis for both new fixtures
+2. package generation for both new fixtures
+3. family-level reusable migration assertions for both new fixtures
+
+## Outcome
+
+`G3` now has:
+
+1. one P0 anchor
+2. one first expansion fixture
+3. two second-round expansion fixtures
+
+So the family baseline now proves that the current `paginated_enrichment` contract is reusable across:
+
+1. `ticketNo`
+2. `workOrderNo`
+3. `orderNo`
+
+with corresponding pagination-field variants.