feat: switch default run commands to MPT mode

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "go-ethereum"]
+	path = go-ethereum
+	url = https://github.com/morph-l2/go-ethereum.git
+[submodule "morph"]
+	path = morph
+	url = https://github.com/morph-l2/morph.git

README.md

@@ -47,14 +47,14 @@ Before setting up a Morph node, ensure you have the following installed:
     make download-and-decompress-hoodi-snapshot
     ```
 
-- For MPT node (mainnet or Hoodi testnet), download the MPT-specific snapshot:
+- For ZK node (legacy), download the ZK-specific snapshot:
 
     ```bash
-    make download-and-decompress-mainnet-mpt-snapshot
+    make download-and-decompress-mainnet-zk-snapshot
     ```
     or
     ```bash
-    make download-and-decompress-hoodi-mpt-snapshot
+    make download-and-decompress-hoodi-zk-snapshot
     ```
 
 - After downloading the snapshot, you need to manually place the decompressed data files in the appropriate node data directories.
@@ -86,21 +86,13 @@ Before setting up a Morph node, ensure you have the following installed:
     make run-node
     ```
 
-  For testnet, run
+  For Hoodi testnet, run
 
     ```bash
     make run-hoodi-node
     ```
 
-  For MPT node, run
-
-    ```bash
-    make run-mainnet-mpt-node
-    ```
-    or
-    ```bash
-    make run-hoodi-mpt-node
-    ```
+- Both commands default to MPT mode. For ZK legacy nodes, use `make run-zk-node` or `make run-hoodi-zk-node`.
 
 - This command will set up and run the node based on the configurations specified in your .env file.
 
@@ -139,13 +131,6 @@ The table below provides the node snapshot data and corresponding download URLs.
 | [snapshot-20260304-1](https://snapshot.morphl2.io/hoodi/snapshot-20260304-1.tar.gz) | 2349111                 | 2346416             | 3713448        |
 | [snapshot-20260210-1](https://snapshot.morphl2.io/hoodi/snapshot-20260210-1.tar.gz) | 2205636                 | 2201288             | 3187147        |
 
-**For holesky testnet(legacy)**:
-
-|    Snapshot Name    |Derivation Start Height | L1 Msg Start Height | L2 Base Height |
-|:--------------------|:------------------------|:--------------------|:--------------------|
-|[snapshot-20250903-1](https://snapshot.morphl2.io/holesky/snapshot-20250903-1.tar.gz)|4445350|4445989|19741862|
-|[snapshot-20250818-1](https://snapshot.morphl2.io/holesky/snapshot-20250818-1.tar.gz)|4360545|4359976|19432113|
-|[snapshot-20250428-1](https://snapshot.morphl2.io/holesky/snapshot-20250428-1.tar.gz)|3748991|3748974|17193670|
 
 ## Documentation
 For detailed information on Morph and its ecosystem, refer to the official documentation: