Add operator dashboard, command catalog expansions, environment policy checks, UI assets and docs

[aoxc]

Motivation

• Provide an in-app operational dashboard and enrich the operator control surface with canonical AOXC commands and explicit environment policies.
• Surface runtime/binary/version information and quick actions in the hub UI and ensure mainnet/testnet policy enforcement for high-risk operations.

Description

• Added a crate-local operator blueprint (crates/aoxchub/OPERATOR_BLUEPRINT.md) and a repository-level full product specification (docs/AOXCHUB_FULL_SPEC.md) and wired a small README note linking the blueprint.
• Extended the commands catalog with multiple AOXC command specs (chain/genesis/node/network/wallet/tx/stake/runtime/audit) and grouped UI/Make targets for environment-scoped operations.
• Introduced InstalledVersions and DashboardSnapshot types and added a dashboard field to HubStateView in domain, and implemented dashboard_snapshot builder in services to populate the dashboard state.
• Hardened environment policy logic: is_command_allowed now looks up command specs and enforces environment-specific restrictions for mainnet/testnet and high-risk commands, and added policy_note generation.
• Updated web embedding and assets: added dashboard.css and included it in the embedded assets, updated index.html to add a Dashboard view, and extended app.js to render dashboard metrics, versions, recent activity and quick actions and to hook rendering into UI lifecycle.
• Added UI CSS for dashboard layout and visuals under ui-assets/css/dashboard.css and imported it in app.css.
• Added and updated tests to cover the new catalog entries, environment policy behavior, and the presence and basic invariants of the dashboard snapshot in the hub state (tests/catalog_tests.rs, new tests/policy_tests.rs, updated tests/status_tests.rs).

Testing

• Built the crate and ran unit/integration tests for the aoxchub crate with cargo test which exercises catalog_tests, policy_tests, and status_tests; all tests completed successfully.
• Verified the web asset embedding code paths compile by running cargo build for the crate; build succeeded.

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Codex Task