feat: add generated scene skill platform hardening

docs/superpowers/specs/2026-04-19-g7-real-sample-entry-design.md

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+# G7 Real-Sample Entry Design
+
+> Date: 2026-04-19
+> Status: Draft
+> Upstream Decision: [2026-04-19-boundary-family-entry-decision-report.md](D:/data/ideaSpace/rust/sgClaw/claw-new/docs/superpowers/reports/2026-04-19-boundary-family-entry-decision-report.md)
+
+## 1. Intent
+
+This design defines the next bounded execution slice after the boundary-family entry roadmap selected `G7` as the only next candidate.
+
+The target is:
+
+`G7 real-sample entry`
+
+## 2. Why G7
+
+`G7` is selected because:
+
+1. it already has a minimal runnable runtime contract
+2. it does not require host bridge execution semantics as strongly as `G6`
+3. it does not require local document pipeline and attachment handling as strongly as `G8`
+
+## 3. Scope Boundary
+
+This design is limited to one representative `G7` real sample:
+
+1. `计量资产库存统计`
+
+It may include:
+
+1. real-sample contract differential
+2. bounded real-sample rerun
+3. validation-layer update if the result narrows
+
+It must not include:
+
+1. new `G7` family expansion
+2. new runtime-platform work
+3. `G6` or `G8` execution
+4. `G4 / G5`
+
+## 4. Target Outcome
+
+The bounded target outcome is one of two states:
+
+1. `executed-pass`
+2. or a smaller named `G7` real-sample mismatch
+
+The design rejects opening generalized boundary-family work beyond this one representative sample.
+
+## 5. Exit Condition
+
+This design is complete when implementation can be bounded to one plan that:
+
+1. freezes one `G7` real sample
+2. reruns it against the existing minimal `G7` runtime contract
+3. updates the validation layer with a narrower outcome