feat(core): track system metrics and link plugins to workers when possible (#33411)

- Track relevant CPU and memory system metrics.
- Link plugins to workers when possible.
- Refactor collector code by splitting it into two separate structs.

Author: leosvelperez

packages/nx/src/native/index.d.ts

@@ -117,6 +117,8 @@ export declare class ProcessMetricsCollector {
   getSystemInfo(): SystemInfo
   /** Register the main CLI process for metrics collection */
   registerMainCliProcess(pid: number): void
+  /** Register a subprocess of the main CLI for metrics collection */
+  registerMainCliSubprocess(pid: number, alias?: string | undefined | null): void
   /** Register the daemon process for metrics collection */
   registerDaemonProcess(pid: number): void
   /**
@@ -126,8 +128,6 @@ export declare class ProcessMetricsCollector {
   registerTaskProcess(taskId: string, pid: number): void
   /** Register a batch with multiple tasks sharing a worker */
   registerBatch(batchId: string, taskIds: Array<string>, pid: number): void
-  /** Register a subprocess of the main CLI for metrics collection */
-  registerMainCliSubprocess(pid: number): void
   /** Subscribe to push-based metrics notifications from TypeScript */
   subscribe(callback: (err: Error | null, event: MetricsUpdate) => void): void
 }
@@ -343,6 +343,7 @@ export interface ProcessMetadata {
   command: string
   exePath: string
   cwd: string
+  alias?: string
 }
 
 /** Process metrics (dynamic, changes every collection) */
@@ -355,6 +356,7 @@ export interface ProcessMetrics {
 /** Organized collection of process metrics with timestamp */
 export interface ProcessMetricsSnapshot {
   timestamp: number
+  system: SystemMetrics
   mainCli?: ProcessTreeMetrics
   daemon?: ProcessTreeMetrics
   tasks: Record<string, Array<ProcessMetrics>>
@@ -408,6 +410,15 @@ export interface SystemInfo {
   totalMemory: number
 }
 
+/** System metrics (dynamic, changes every collection) */
+export interface SystemMetrics {
+  cpu: number
+  memory: number
+  availableMemory: number
+  swapUsed: number
+  swapTotal: number
+}
+
 export interface Target {
   executor?: string
   inputs?: Array<JsInputs>