Add AgentOS daemon control plane and maintenance tooling

packages/backend/convex/daemons.ts

@@ -0,0 +1,60 @@
+import { v } from "convex/values";
+
+import { mutation, query } from "./_generated/server";
+
+const now = () => Date.now();
+
+export const upsert = mutation({
+  args: {
+    daemonId: v.string(),
+    name: v.string(),
+    desiredState: v.union(v.literal("online"), v.literal("offline")),
+    agentOsConfig: v.any(),
+  },
+  handler: async (ctx, args) => {
+    const existing = await ctx.db
+      .query("daemonDefinitions")
+      .withIndex("by_daemonId", (q) => q.eq("daemonId", args.daemonId))
+      .unique();
+    const timestamp = now();
+    if (existing) {
+      await ctx.db.patch("daemonDefinitions", existing._id, {
+        name: args.name,
+        desiredState: args.desiredState,
+        agentOsConfig: args.agentOsConfig,
+        configVersion: existing.configVersion + 1,
+        updatedAt: timestamp,
+      });
+      return existing._id;
+    }
+    return await ctx.db.insert("daemonDefinitions", {
+      ...args,
+      configVersion: 1,
+      createdAt: timestamp,
+      updatedAt: timestamp,
+    });
+  },
+});
+
+export const get = query({
+  args: { daemonId: v.string() },
+  handler: async (ctx, args) => {
+    const definition = await ctx.db
+      .query("daemonDefinitions")
+      .withIndex("by_daemonId", (q) => q.eq("daemonId", args.daemonId))
+      .unique();
+    const presence = await ctx.db
+      .query("daemonPresence")
+      .withIndex("by_daemonId", (q) => q.eq("daemonId", args.daemonId))
+      .order("desc")
+      .first();
+    return { definition, presence };
+  },
+});
+
+export const list = query({
+  args: {},
+  handler: async (ctx) => {
+    return await ctx.db.query("daemonDefinitions").order("desc").collect();
+  },
+});