Add idempotent local dev service management

Co-Authored-By: Paperclip <noreply@paperclip.ing>

scripts/dev-service-profile.ts

@@ -0,0 +1,44 @@
+import { createHash } from "node:crypto";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { createLocalServiceKey } from "../server/src/services/local-service-supervisor.ts";
+
+export const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
+
+export function createDevServiceIdentity(input: {
+  mode: "watch" | "dev";
+  forwardedArgs: string[];
+  tailscaleAuth: boolean;
+  port: number;
+}) {
+  const envFingerprint = createHash("sha256")
+    .update(
+      JSON.stringify({
+        mode: input.mode,
+        forwardedArgs: input.forwardedArgs,
+        tailscaleAuth: input.tailscaleAuth,
+        port: input.port,
+      }),
+    )
+    .digest("hex");
+
+  const serviceName = input.mode === "watch" ? "paperclip-dev-watch" : "paperclip-dev-once";
+  const serviceKey = createLocalServiceKey({
+    profileKind: "paperclip-dev",
+    serviceName,
+    cwd: repoRoot,
+    command: "dev-runner.ts",
+    envFingerprint,
+    port: input.port,
+    scope: {
+      repoRoot,
+      mode: input.mode,
+    },
+  });
+
+  return {
+    serviceKey,
+    serviceName,
+    envFingerprint,
+  };
+}