Mantle 0.1.4

Integrate the final Codex release and acceptance records and refresh the public setup and release documentation.

• Include the merged 0.1.3 release evidence and subsequent operator-confirmed working attachment.
• Update the workspace packages, public quickstart and release links to 0.1.4.
• Keep qualification evidence explicit: authenticated model/tool turns, token refresh and the complete two-agent lifecycle matrix are not all verified.

Runtime behavior is unchanged from 0.1.3. This release retains the attachment-readiness handshake, bounded Substrate 0.7.10 output queue, pinned Codex 0.153.4 and existing confinement.

This is a source release with GitHub source archives and no prebuilt release binaries. Build the laptop CLI and static worker binaries from this tag. Existing worker upgrades require coordinated maintenance; preserve wanted workspace data and avoid interrupting active sessions.

Validation: local formatting, ESS specification, AEP and exact-source documentation build passed. Required exact-candidate CI validates the complete Rust gate, native ESS conformance and all three static musl worker binaries before publication. Updated public documentation source is included; live publication is verified separately.

Public documentation: https://beyond10x.github.io/mantle/