feat(cli): ci + anonymize + diff commands

[sepehr-safari]

Summary

Adds three new CLI commands for v0.3.0:

1. ocpp-debugkit ci [dir]

Run all built-in scenarios (and optional external scenario files from [dir]), exit 0 if all pass, 1 if any fail. Supports --format json for CI tooling.

ocpp-debugkit ci                    # Run all built-in scenarios
ocpp-debugkit ci ./scenarios        # Also run external scenarios from directory
ocpp-debugkit ci --format json      # JSON output for CI integration

2. ocpp-debugkit anonymize <file>

Strip sensitive fields from a trace file. Anonymizes: idTag, chargePointSerialNumber, stationId, transactionId, email/phone/IP patterns.

ocpp-debugkit anonymize trace.json              # Output to stdout
ocpp-debugkit anonymize trace.json -o anon.json  # Write to file

3. ocpp-debugkit diff <a> <b>

Compare two trace files and output differences. Uses diffTraces() from Issue #85.

ocpp-debugkit diff trace-a.json trace-b.json
ocpp-debugkit diff trace-a.json trace-b.json --format json

Additional Fixes

• evaluateScenario() now deduplicates failure codes before comparing with expectedFailures — fixes false negatives when a rule fires multiple times for the same code
• Fixed unexpected-start scenario — extended session duration to >60s to avoid false SUSPICIOUS_SESSION_DURATION trigger
• Fixed slow-csms-response scenario — changed timing assertion from maxGapMs to minGapMs (the gap should be large, not small)

Files Changed

• packages/toolkit/src/cli/commands/ci.ts — new
• packages/toolkit/src/cli/commands/anonymize.ts — new
• packages/toolkit/src/cli/commands/diff.ts — new
• packages/toolkit/src/cli/index.ts — register new commands
• packages/toolkit/src/cli/cli.test.ts — 6 new integration tests
• packages/toolkit/src/core/assertions.ts — deduplicate failure codes
• packages/toolkit/src/scenarios/__scenarios__/slow-csms-response.ts — fix assertion
• packages/toolkit/src/scenarios/__scenarios__/unexpected-start.ts — extend session duration
• .changeset/v03-cli-commands.md — minor bump changeset
• CURRENT_STATE.md — updated with v0.3.0 progress

Closes #88

Checklist

• ocpp-debugkit ci runs all scenarios, exits 0/1, supports --format json and [dir] arg
• ocpp-debugkit anonymize <file> strips sensitive fields, supports -o output
• ocpp-debugkit diff <a> <b> shows trace differences, supports --format json
• All commands have input validation (file paths, size limits, safe parsing)
• Error messages are non-sensitive
• Integration tests (execa-based) for each command
• Help text for each command
• Changeset added
• CURRENT_STATE.md updated
• Lint, typecheck, test, format all pass (371 tests)