feat(server): enhance workflow and script handling with new features

- Added `workflowLastModifiedAt` function to retrieve the last modified timestamp of workflow YAML files.
- Introduced `encodeBinaryForWire` and `reviveBinaryFromWire` functions for better handling of binary data in JSON.
- Implemented `useDeleteKv` hook for deleting key-value pairs in the web API.
- Enhanced `scriptsPluginFactory` to support dry-run evaluations with JSONata expressions.
- Added `set-dry-run-smoke.js` test to validate dry-run functionality.
- Updated profile configuration to include `overlayFromMerged` for better profile management.
- Introduced try-session management in the web components to handle step execution states.
- Improved various components to support new try-session features and maintain UI consistency.

Co-authored-by: Nasyarobby Putra <nasyarobby@gmail.com>

packages/server/src/api/kv.js

@@ -1,4 +1,4 @@
-import { kvNamespaces, kvQuery } from "../../kv-store.js";
+import { kvDelete, kvNamespaces, kvQuery } from "../../kv-store.js";
 
 /**
  * @param {import("fastify").FastifyInstance} fastify
@@ -19,4 +19,17 @@ export default async function kvPlugin(fastify) {
       offset: Number.isFinite(offset) ? offset : undefined,
     });
   });
+
+  fastify.delete("/kv", async (req, reply) => {
+    const q = /** @type {Record<string, string | undefined>} */ (req.query ?? {});
+    try {
+      const deleted = await kvDelete(String(q.namespace ?? ""), String(q.key ?? ""));
+      if (!deleted) {
+        return reply.code(404).send({ error: "kv entry not found" });
+      }
+      return { ok: true };
+    } catch (err) {
+      return reply.code(400).send({ error: err.message });
+    }
+  });
 }