Advance WP-0007: degeneration research, profile catalog, canonicalization checklist

T01: specs/TargetDegenerationPolicyResearch.md. Survey finds no
precedent (BSL/FSL/Elastic) implements progress-sensitive degeneration
- TRSL's model is original design. Proposes a candidate v1 formula
(90-day rolling "quiet period" pause on Remission Credit accrual
during active Development Credit periods), resolves the
contributor-diversity input as explicitly not-adopted (no
gaming-resistant signal exists yet), and resolves the
longstop/progress-sensitivity relationship as a hard, unconditional
backstop. Does not recommend v0 vs v1 for T02 - that's the human gate.

T02: recommendation added (confirm v0 for the first pilot cohort, name
v1 as the next iteration) - left todo per the human-accept policy.

T03: specs/CanonicalMonetizationProfiles.md with worked narratives for
all six catalog profiles, plus two new fixtures (product-ideation,
general-consulting), both schema-validated and added to the
parametrized conformance test.

T04: specs/CanonicalizationReviewChecklist.md, an 8-item checklist
layered on the already-implemented promote_extension_canonical()
mechanism (WP-0006-T03) - defines what a reviewer must verify, not a
new promotion mechanism.

tests/test_extension_conformance.py

@@ -13,6 +13,8 @@ from target_revenue import validation
         "cost-plus-operations",
         "phase-sponsorship",
         "service-with-development-allocation",
+        "product-ideation",
+        "general-consulting",
     ],
 )
 def test_canonical_stage0_extensions_are_conformant(name):