feat(tpsc): Third-Party Services Catalog (CUST-WP-0023)

Introduces TPSC for tracking external service dependencies with GDPR
compliance maturity (CNIL/IAPP CMMI scale), pricing model, ToS, and
data retention information across all repos.

Primary data:
- canon/tpsc/{openai,anthropic,gemini,openrouter}-api.yaml — service definitions
- tpsc.yaml in each repo (llm-connect seeded with 4 services)

State-hub additions:
- Migration j7e8f9a0b1c2: tpsc_catalog + tpsc_snapshots + tpsc_entries
- api/models/tpsc.py, api/schemas/tpsc.py, api/routers/tpsc.py
- /tpsc/catalog/, /tpsc/ingest/, /tpsc/snapshots/, /tpsc/report/gdpr endpoints
- 4 MCP tools: register_service, list_services, ingest_tpsc_tool, get_gdpr_report
- scripts/ingest_tpsc.py + make ingest-tpsc[/-all] targets
- Dashboard: tpsc.md page + docs/tpsc.md

GDPR maturity scale: unknown | non_compliant | initial | developing | defined | managed | certified
Warnings triggered at: unknown, non_compliant, initial

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

canon/tpsc/gemini-api.yaml

@@ -0,0 +1,26 @@
+slug: gemini-api
+name: Google Gemini API
+provider: Google LLC
+category: llm_inference
+website_url: https://ai.google.dev
+pricing_model: usage_based
+gdpr_maturity: defined
+gdpr_notes: >
+  Google Cloud (including Vertex AI / Gemini API via Google Cloud) has a
+  comprehensive GDPR compliance programme. DPA is part of Google Cloud ToS.
+  Data Processing Addendum and SCCs available. Google Cloud has EU data
+  residency options (data can stay in EU). Google AI Studio (free tier)
+  has weaker protections — data may be used to improve Google products.
+  Use Vertex AI / Google Cloud API endpoint for GDPR-adequate usage.
+  Reference: https://cloud.google.com/terms/data-processing-addendum
+dpa_available: true
+tos_url: https://ai.google.dev/gemini-api/terms
+privacy_policy_url: https://policies.google.com/privacy
+data_processing_regions:
+  - us
+  - eu  # when using Vertex AI with EU region selection
+data_retention_notes: >
+  Google AI Studio: prompts may be reviewed by human raters and used to
+  improve models. Google Cloud / Vertex AI: data not used for training,
+  retained per Cloud data retention policy (configurable).
+status: active