feat(client): add CAS/CAD, DELEX, DIGEST support (#3123)

* feat: add digest command and tests

* feat: add delex command and tests

* feat: add more conditional options to SET update tests

packages/client/lib/commands/DELEX.ts

@@ -0,0 +1,60 @@
+import { CommandParser } from "../client/parser";
+import { NumberReply, Command, RedisArgument } from "../RESP/types";
+
+export const DelexCondition = {
+  /**
+   * Delete if value equals match-value.
+   */
+  IFEQ: "IFEQ",
+  /**
+   * Delete if value does not equal match-value.
+   */
+  IFNE: "IFNE",
+  /**
+   * Delete if value digest equals match-digest.
+   */
+  IFDEQ: "IFDEQ",
+  /**
+   * Delete if value digest does not equal match-digest.
+   */
+  IFDNE: "IFDNE",
+} as const;
+
+type DelexCondition = (typeof DelexCondition)[keyof typeof DelexCondition];
+
+export default {
+  IS_READ_ONLY: false,
+  /**
+   * Conditionally removes the specified key based on value or digest comparison.
+   *
+   * @param parser - The Redis command parser
+   * @param key - Key to delete
+   */
+  parseCommand(
+    parser: CommandParser,
+    key: RedisArgument,
+    options?: {
+      /**
+       * The condition to apply when deleting the key.
+       * - `IFEQ` - Delete if value equals match-value
+       * - `IFNE` - Delete if value does not equal match-value
+       * - `IFDEQ` - Delete if value digest equals match-digest
+       * - `IFDNE` - Delete if value digest does not equal match-digest
+       */
+      condition: DelexCondition;
+      /**
+       * The value or digest to compare against
+       */
+      matchValue: RedisArgument;
+    }
+  ) {
+    parser.push("DELEX");
+    parser.pushKey(key);
+
+    if (options) {
+      parser.push(options.condition);
+      parser.push(options.matchValue);
+    }
+  },
+  transformReply: undefined as unknown as () => NumberReply<1 | 0>,
+} as const satisfies Command;