[Allan-Nava]

Description

Add crowdsim batch <config.json> subcommand to run multiple load tests sequentially from a configuration file. Enables CI/CD automation and multi-stage test campaigns.

Changes

• bin/crowdsim: New cmd_batch() function

  • Reads JSON config with array of jobs
  • Each job specifies profile, target, peak rate, shape, steps
  • Executes sequentially, logs pass/fail
  • Collects exit codes (0 = all pass, 1 = any failure)

• examples/batch-config.json (new): Example config

  • Three sequential jobs: baseline (50 req/s), load (100 req/s), spike (200 req/s)
  • Shows config structure

Config Format

{
  "name": "Campaign name",
  "jobs": [
    { "name": "test1", "profile": "...", "target": "...", "peak": 50, "shape": "mix", "steps": 4 },
    { "name": "test2", "profile": "...", "target": "...", "peak": 100, "shape": "mix", "steps": 6 }
  ]
}

Usage

crowdsim batch examples/batch-config.json

Output:

Testing

• Syntax verified (no node --check for bash)
• Example config is valid JSON

Related

Closes #97 (partial — webhooks/hooks deferred to v1.20.1)

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