feat: add generated scene skill platform hardening

docs/superpowers/reports/2026-04-19-g3-enrichment-request-closure-report.md

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+# G3 Enrichment Request Closure Report
+
+> Date: 2026-04-19
+> Parent Plan: `docs/superpowers/plans/2026-04-19-g3-enrichment-request-closure-plan.md`
+> Parent Route: `Route 2: G3 / paginated_enrichment`
+
+## Scope
+
+This report closes the bounded `G3` subgroup:
+
+`paginated_enrichment + g3_enrichment_contract + secondary_request`
+
+The implementation only recovered missing enrichment-request contract evidence. It did not absorb export-plan closure work.
+
+## Implementation Slice
+
+The bounded slice was implemented in:
+
+1. `src/generated_scene/generator.rs`
+2. `tests/scene_generator_test.rs`
+
+The recovery logic now prefers existing enrichment candidates from:
+
+1. endpoint-backed request templates
+2. `g1e_enrichment_endpoints`
+3. `g3_business_endpoint_names`
+4. secondary-request-aligned endpoint heuristics
+
+No Route 3+ files or execution-board assets were changed.
+
+## Bounded Validation
+
+Validated scenes:
+
+1. `sweep-001-95598-12398`
+2. `sweep-008-95598`
+3. `sweep-002-95598-12398`
+
+## Before / After
+
+### Resolved
+
+1. `sweep-001-95598-12398`
+   Before: `fail-closed / C / enrichmentRequests = 0`
+   After: `pass / A / enrichmentRequests = 2`
+
+2. `sweep-008-95598`
+   Before: `fail-closed / C / enrichmentRequests = 0`
+   After: `pass / A / enrichmentRequests = 3`
+
+### Residual
+
+1. `sweep-002-95598-12398`
+   Before: `fail-closed / C / enrichmentRequests = 0`
+   After: still `fail-closed / C`
+
+   The residual blocker is no longer treated as the enrichment-request subgroup target. It remains bounded as:
+
+   1. `g3_export_plan`
+   2. `export_plan`
+
+   This residual is explicitly handed to:
+
+   `docs/superpowers/plans/2026-04-19-g3-export-plan-closure-plan.md`
+
+## Coverage Delta
+
+Fixed input count:
+
+1. before: `3`
+2. resolved by this plan: `2`
+3. residual handed off: `1`
+
+## Completion
+
+This child plan is complete because:
+
+1. the targeted enrichment-request subgroup has a measured before/after count
+2. the subgroup was reduced without route drift into `host_bridge_workflow`
+3. the remaining unresolved scene was explicitly bounded as export-plan residual
+
+## Stop Statement
+
+This report closes the enrichment-request child plan.
+
+Do not continue into export-plan closure work under this plan.