feat: OPE46-00048: QoL: Add thresholds override flags

[andrei-hasna]

Objective

OPE46-00048: QoL: Add thresholds override flags

Add threshold override flags: monitor doctor --cpu-threshold 80 --mem-threshold 85 for one-off threshold adjustments.

MEASURED on origin/main: monitor doctor [machine] (src/cli/index.ts:522) has only --limit/--cursor/--verbose/--json; thresholds come from config. Add one-off override flags --cpu-threshold and --mem-threshold (and any other thresholds the doctor already reads) that take precedence over config for that invocation only.

EXECUTION NOTES (added 2026-07-29 for autonomous execution)
Repo: github.com/hasna/monitor. CLI commands are registered in src/cli/index.ts (Commander). Verified against origin/main that this surface does NOT already exist.
Requirements: implement in src/ (not docs); keep existing output shapes and the -j/--json contract intact; reuse the existing helpers in that file (parseLimitOption, parseCursorOption, chalk formatting) rather than inventing new patterns.
Acceptance: bun run typecheck, bun run build and bun test are all green, and a new/extended test under src/ exercises the new behaviour (assert on the command's JSON output and/or exit code, not on colored text). No network, no live remote machines, no credentials — tests must run offline against local collectors/fixtures.

Verification

• policy source: base c4cbd1e (immutable commit — agent-proof)
• ⚠️ GATE-INTEGRITY: agent touched verify-bearing config — REVIEW (scripts.typecheck)
• containment: env — allowlist env, non-login shell, run-scoped HOME (registry auth seeded for install)
• install: pass
• typecheck: pass
• lint: pass
• build: pass
• test: pass
• doctor (ci): ok — 11 checks passed (1 advisory)

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Run run_7d6202cce403 · backend codewith · task eedf4ac7-ec9d-4fdc-9b33-0a1c5f09a54d
🏭 Generated by @hasnaxyz/factory

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