feat: update active hosted deployment compute

[alongubkin]

Summary

• route active hosted push deployment compute changes through Platform
• avoid taking the private manager lock from generated deployment CLIs
• make repeated requests idempotent

Test

• cargo test -p alien-deploy-cli hosted_compute_update_uses_deployment_token_and_exact_payload --lib
• cargo check -p alien-deploy-cli
• cargo fmt -p alien-deploy-cli -- --check

ALIEN-611

[greptile-apps]

Greptile Summary

The PR routes compute changes for running hosted push deployments through a deployment-scoped Platform request while avoiding the normal manager acquisition flow.

• Adds explicit-setting detection so omitted non-compute defaults do not block compute-only updates.
• Rejects requests that combine compute changes with explicit network, updates, or telemetry changes.
• Adds an authenticated PATCH helper and focused request-payload tests.
• Adds httpmock as a development dependency for the deploy CLI.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
crates/alien-deploy-cli/src/commands/up.rs	Adds the hosted compute-update fast path, explicit non-compute change checks, authenticated Platform request helper, and focused tests; both previously reported settings-handling defects are addressed.
crates/alien-deploy-cli/Cargo.toml	Adds httpmock as a test-only dependency.
Cargo.lock	Records the deploy CLI's new development dependency without changing runtime behavior.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[alien-deploy up] --> B{Running hosted push deployment<br/>with compute settings?}
    B -->|No| C[Normal deployment workflow]
    B -->|Yes| D{Explicit non-compute<br/>setting changed?}
    D -->|Yes| E[Reject combined request]
    D -->|No| F{Compute differs from<br/>persisted settings?}
    F -->|No| G[Report already configured]
    F -->|Yes| H[PATCH Platform compute endpoint<br/>with deployment token]
    H --> I[Report update accepted]

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_{Reviews (3): Last reviewed commit: "fix(deploy-cli): compare only explicit h..." | Re-trigger Greptile}