feat(profile): CanonicalProductRegulatoryProfile convergence layer (types + mappers + tests)

ONE canonical product profile so the Go gap engine and the Python reasoning
engine stop diverging ("SPS mit Remote Access" means the same everywhere).
gap.ProductProfile LEADS; the reasoning ProductProfile becomes an adapter/DTO.
Types + mappers only — no regulation logic, no Go changes, no UI, no new questions.

- CanonicalProductRegulatoryProfile mirrors gap.ProductProfile + the Navigator
  gaps the audit found: economic-operator role, radio_module, generates_usage_data,
  lifecycle_phase, structured BOM (ProductComponent), safety-vs-security split,
  machine-vs-component + a forward-looking EnvironmentalImpact domain (wastewater/
  air/chemicals triggers — fields only, no rules yet).
- Mappers: from_product_wizard (lossless), from_company_profile (prefill incl.
  the machineBuilder block), to_gap_profile (emits the unchanged gap JSON shape),
  to_reasoning_profile (projects into the reasoning ProductProfile; AI stays
  delegated to ai-act/ucca). Only profile->reasoning is coupled; reasoning stays
  hermetic.
- 10 tests = the 10 acceptance criteria incl. ProductWizard round-trip lossless,
  markets no longer forced ['EU'], and canonical->reasoning->discover_scope
  proving one semantic profile drives the engine. 33 tests green, mypy clean.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend-compliance/compliance/profile/__init__.py

@@ -0,0 +1,38 @@
+"""Product profile convergence layer.
+
+ONE canonical product profile (`CanonicalProductRegulatoryProfile`) that the Go
+gap engine and the Python reasoning engine both project from — so "SPS mit
+Remote Access" means the same thing everywhere. gap.ProductProfile leads; the
+reasoning ProductProfile is an adapter/DTO. Types + mappers only — no regulation
+logic, no UI, no new questions.
+"""
+
+from __future__ import annotations
+
+from .canonical import (
+    CanonicalLifecyclePhase,
+    CanonicalProductRegulatoryProfile,
+    CanonicalProductType,
+    ComponentKind,
+    EconomicOperatorRole,
+    EnvironmentalImpact,
+    ProductComponent,
+)
+from .from_company_profile import from_company_profile
+from .from_product_wizard import from_product_wizard
+from .to_gap import to_gap_profile
+from .to_reasoning import to_reasoning_profile
+
+__all__ = [
+    "CanonicalProductRegulatoryProfile",
+    "CanonicalProductType",
+    "EconomicOperatorRole",
+    "CanonicalLifecyclePhase",
+    "ComponentKind",
+    "ProductComponent",
+    "EnvironmentalImpact",
+    "from_product_wizard",
+    "from_company_profile",
+    "to_gap_profile",
+    "to_reasoning_profile",
+]