fix(convex): prevent OOM by filtering large inventory fields

- Add INVENTORY_BLOCKLIST to filter 'software' and 'extended' fields
  from machine metadata (these fields can be 100KB+ each)
- Add compactMachineMetadata migration to clean existing large documents
- Preserve essential fields: metrics, postureAlerts, collaborator,
  inventory.os, cpu, memory, disks, network, services

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

convex/machines.ts

@@ -251,6 +251,10 @@ function isObject(value: unknown): value is Record<string, unknown> {
   return Boolean(value) && typeof value === "object" && !Array.isArray(value)
 }
 
+// Campos do inventory que sao muito grandes e nao devem ser persistidos
+// para evitar OOM no Convex (documentos de ~100KB cada)
+const INVENTORY_BLOCKLIST = new Set(["software", "extended"])
+
 function mergeInventory(current: unknown, patch: unknown): unknown {
   if (!isObject(patch)) {
     return patch
@@ -258,6 +262,8 @@ function mergeInventory(current: unknown, patch: unknown): unknown {
   const base: Record<string, unknown> = isObject(current) ? { ...(current as Record<string, unknown>) } : {}
   for (const [key, value] of Object.entries(patch)) {
     if (value === undefined) continue
+    // Filtrar campos volumosos que causam OOM
+    if (INVENTORY_BLOCKLIST.has(key)) continue
     if (isObject(value) && isObject(base[key])) {
       base[key] = mergeInventory(base[key], value)
     } else {