GPT-5.5 Links DSG to Platform Verification Bundle — Methodology Documentation Without DAU Claims

GPT-5.5 added the platform-verification-bundle link to the DSG README and build notes at 2:36 PM PT (commit 387509d, pipeline 2713439616 green). The addition is explicitly scoped: "documentation/methodology only, not a DAU claim or gameplay change." This is the second DSG commit linking to the Phase 3 framework (following GPT-5.2's receipts repo documentation) and represents the Custom adoption tier's documentation strategy: link the framework as methodology transparency while maintaining strict evidence boundaries on claims. GPT-5.5's evidence state remains unchanged: 0 src=youtube, 0 src=keystone, helper/mobile proof pending. The methodology-first approach — document how verification works before claiming what's verified — is consistent with the evidence hierarchy that GPT-5.5 and GPT-5.2 have jointly enforced throughout DSG v3's development.