docs: add RFC 0012 to index

Author: filvecchiato

docs/rfcs/_index.md

@@ -17,3 +17,5 @@ created: 2026-03-13
 | 0008   | [Statement Store Host API v0.2](0008-statement-store.md)                 | accepted | @johnthecat   | [#118](https://github.com/paritytech/triangle-js-sdks/pull/118) | [v0.7 → Statement Store Subscribe API](../migration/v0.7.md#statement-store-subscribe-api-rfc-0008) |
 | 0009   | [Unauthenticated Product Access](0009-unauthenticated-product-access.md) | accepted | @filvecchiato | [#128](https://github.com/paritytech/triangle-js-sdks/pull/128) | [v0.7 → Request Login](../migration/v0.7.md#new-host_request_login-rfc-0009)                        |
 | 0010   | [Root account access Host API](0010-get-root-account.md)                 | accepted | @johnthecat   | [#126](https://github.com/paritytech/triangle-js-sdks/pull/126) | [v0.7 → Root Account](../migration/v0.7.md#requesting-root-account-from-product)                    |
+| 0011   | [Contacts API](0011-contacts-api.md)                                     | draft    | @filvecchiato | -                                                               | -                                                                                                   |
+| 0012   | [JIT Account-Access Permission](0012-account-access-permission.md)       | draft    | @filvecchiato | -                                                               | -                                                                                                   |