runtime: introduce Forty-Two runtime orchestrator foundation

[bobbygodias]

Scope

This draft introduces the first engine-agnostic Forty-Two Runtime Layer without switching the existing ModelStore execution path yet.

Included

• capability registry separating physical hardware from engine devices
• execution planner with automatic / CPU / balanced / strict policies
• strict acceleration exposed only when zero-fallback execution can be proven
• GGML adapter that intersects verified hardware with devices exposed by the concrete runtime
• llama.rn shadow bridge preserving the current native engine behind the new abstraction
• semantic runtime load settings
• runtime telemetry contract
• architecture and network/lore design notes
• unit tests for planner invariants and GGML hardware/runtime matching

Safety

main behavior is intentionally unchanged. This PR remains draft until quality gates pass and the shadow bridge reproduces the current load path.

13/09/2026 — reconciliation checkpoint

• reconciled runtime/orchestrator-v1 with the current main, which already contains the integrated Forty-Two chat shell;
• preserved the current main versions of shared UI/store files instead of overwriting them with stale branch state;
• post-reconciliation diff is clean: runtime/documentation changes only, with the branch 0 commits behind main;
• fresh Forty-Two quality CI on the reconciled HEAD passes localization validation, font validation, TypeScript, lint and the full unit-test/coverage step;
• the historical unit-test failure on the pre-reconciliation runtime HEAD is therefore retained only as historical evidence and must not be “fixed” with unrelated MobX/async test workarounds;
• Android ARM64/Vulkan CI is the remaining native build gate for this checkpoint;
• this PR intentionally stays draft after quality CI: code inspection alone does not yet prove full parity between LlamaRnBridge and every current ModelStore.initContext() load path (including resolved settings and multimodal/projection cases). That parity must be demonstrated before production cutover.

NÃO ENTRE EM PÂNICO. This is the new engine room, not a production cutover.