chore: remove deprecated sf clusters command

[Flaque]

The clusters feature has been fully deprecated and is now being removed.

This removes:

• All cluster command implementations (list, users add/rm/list, config)
• Kubeconfig management utilities
• Cluster-related types and mocks
• Associated tests

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
src/index.ts	0% smaller
src/lib/clusters/ClustersDisplay.tsx	0% smaller
src/lib/clusters/clusters.tsx	0% smaller
src/lib/clusters/credentialTypes.ts	0% smaller
src/lib/clusters/keys.tsx	0% smaller
src/lib/clusters/kubeconfig.test.ts	0% smaller
src/lib/clusters/kubeconfig.ts	0% smaller
src/lib/clusters/mock.ts	0% smaller
src/lib/clusters/types.ts	0% smaller
src/lib/clusters/utils.test.ts	0% smaller
src/lib/clusters/utils.ts	0% smaller

[greptile-apps]

Greptile Summary

Cleanly removes the deprecated clusters feature from the CLI, deleting approximately 1,817 lines of code across 11 files.

What was removed:

• sf clusters command and all subcommands (list, users add/rm/list, config)
• Complete kubeconfig management system (creation, merging, syncing to ~/.kube/config)
• Cryptographic key utilities (NaCl-based encryption/decryption for K8s credentials)
• RFC 1123 subdomain validation utilities for cluster naming
• All associated types, mocks, and comprehensive test suites

Changes made:

• src/index.ts: Removed registerClusters import and registration call
• Deleted entire src/lib/clusters/ directory with all implementation files

Verification:

• No remaining references to clusters functionality found in codebase
• All other command registrations remain intact
• Clean deletion with no orphaned imports or references

Confidence Score: 5/5

• Safe to merge - clean removal of deprecated feature with no remaining dependencies
• Complete removal of deprecated feature with no issues found. All imports removed, no orphaned references, and verification confirms clean deletion across entire codebase.
• No files require special attention

Important Files Changed

Filename	Overview
src/index.ts	Removed registerClusters import and call, cleanly removing clusters command registration
src/lib/clusters/clusters.tsx	Deleted main clusters command file (631 lines) including all cluster subcommands (list, users add/rm/list, config)
src/lib/clusters/kubeconfig.ts	Deleted kubeconfig management utilities (276 lines) including creation, merging, and syncing functions
src/lib/clusters/keys.tsx	Deleted cryptographic key management utilities (107 lines) including key generation and decryption

Sequence Diagram

sequenceDiagram
    participant User
    participant CLI as sf CLI
    participant Index as src/index.ts
    participant Program as Commander Program

    Note over User,Program: BEFORE (clusters feature existed)
    User->>CLI: sf clusters list
    CLI->>Index: Load and register commands
    Index->>Index: import registerClusters
    Index->>Program: registerClusters(program)
    Program->>Program: Register clusters command tree
    Program-->>User: Execute clusters command

    Note over User,Program: AFTER (clusters feature removed)
    User->>CLI: sf clusters list
    CLI->>Index: Load and register commands
    Index->>Program: Skip registerClusters (removed)
    Program-->>User: Error: unknown command 'clusters'

    Note over Index: Removed imports and calls:<br/>- registerClusters import<br/>- registerClusters(program) call
    Note over Program: Remaining commands:<br/>- login, buy, extend, orders<br/>- contracts, sell, balance<br/>- tokens, upgrade, scale<br/>- me, vm, nodes, zones

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