feat(integrations): add openrouter Stripe catalog provider

[snowmead]

Summary

• Adds the openrouter Stripe Projects catalog integration family as CatalogResource adapter(s).
• Follows docs/ADDING-A-PROVIDER.md and docs/PROVIDER-WAVES.md.
• Includes gap test + hermetic provision test. OUTPUT_FIELDS provisional until mise run discover.

Test plan

• Gap + hermetic tests in module
• Live mise run discover when provider is linked
• Merge after resolving additive registry.rs conflict with other family PRs

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Note

Low Risk
Additive integration and SDK helpers with offline tests; credential output names are provisional until live discover, which could cause provision mismatches later but not at merge time.

Overview
Adds OpenRouter as a Phase 1 Stripe Projects CatalogResource for openrouter/api: managed, global-only integration with empty config, api_key output (provisional OUTPUT_FIELDS until mise run discover), plus catalog gap and hermetic provision tests. Wires it through register_providers!, providers/mod.rs, and the Hostable::OUTPUTS ↔ OUTPUT_FIELDS drift test.

Extends stackless-provider-sdk with optional/required boolean and optional integer config readers for schema-driven generated adapters.

Documents catalog-first / wave landing in PROVIDER-WAVES.md, DECISIONS.md, and ADDING-A-PROVIDER.md, and adds scripts/generate_catalog_integrations.py to scaffold remaining deployables.

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Codegen drops implemented providers

High Severity

The new catalog generator rebuilds providers/mod.rs and register_providers! from only Clerk, Cloudflare, and catalog entries still outside IMPLEMENTED. After openrouter/api (or any landed family) is added to IMPLEMENTED, a normal codegen run drops its pub mod line and registry row while the Rust sources remain, breaking dispatch and uniqueness tests.

Additional Locations (1)

• scripts/generate_catalog_integrations.py#L707-L724

 

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