chore(main): release 0.7.15

[scasplte2]

🤖 I have created a release beep boop

0.7.15 (2026-06-19)

Features

• api: type the domain response bodies in the OpenAPI contract (#174) (69f8328)
• api: typed network interface with OpenAPI contract (#173) (6248b80)
• asset: asset model RFCs + interop functor + phase-0 TokenBehavior (#166) (03712d8)
• asset: semi-private guarded transition (groth16 + public-values binding) (#172) (dc2e256)
• asset: sigma-gated morphism guards (metakit rc.5) + docs (#167) (61fe3b5)
• committed: committed-state migration — verifiable calc-state root into the currency snapshot (#164) (4f80285)
• fiber: runtime-updatable (dynamic) dependencies (#24) (#175) (53eb846)
• l0: fee/gas estimation (metakit rc.2) + split ML0 routes into handlers (#163) (1a3ce87)
• multi-party fiber signing (clean rebase of #133) (#161) (9a7fe81)
• registry: versionable scripts + machine/script symmetry + signing invariant fixes (#162) (1a7717f)
• versionable contracts (registry, verified binding, migration, conformance gate) (#154) (c939f1a)

Code Refactoring

• migrate oracle terminology to script (api, engine, docs) (#165) (b6cb0cd)

Documentation

• add OttoChain whitepaper v0.4 draft (#91) (980563d)
• add ottochain-new-app skill specification (#106) (9d63631)
• authenticated trie integration spec — Phase 1B state-proof API (#119) (9a9edae)
• constellation metagraph integration analysis + Phase 1 spec (#107) (d0d7765)
• sigma_verify message-binding spec + audit artifact (#170) (924df6e)

---

This PR was generated with Release Please. See documentation.

[scasplte2]

🤖 Created releases:

• v0.7.15

🌻