清理：删除运行时文件和二进制文件

- 删除 examples/webui/data/ 运行时数据
- 更新 .gitignore 防止再次提交二进制和数据文件
- 只保留示例源代码文件（.go, go.mod, go.sum, README.md）

.gitignore

@@ -35,8 +35,13 @@ testdb/
 *.wal
 *.sst
 
-# Example binaries
+# Example binaries and data
 /examples/*/data/
+/examples/*/*
+!/examples/*/*.go
+!/examples/*/go.mod
+!/examples/*/go.sum
+!/examples/*/README.md
 
 # AI markdown
 /*.md

examples/webui/data/database.meta

@@ -1,20 +0,0 @@
-{
-  "version": 1,
-  "tables": [
-    {
-      "name": "users",
-      "dir": "users",
-      "created_at": 1760073183
-    },
-    {
-      "name": "products",
-      "dir": "products",
-      "created_at": 1760073183
-    },
-    {
-      "name": "logs",
-      "dir": "logs",
-      "created_at": 1760073184
-    }
-  ]
-}

examples/webui/data/logs/CURRENT

@@ -1 +0,0 @@
-MANIFEST-000001

examples/webui/data/logs/schema.json

@@ -1,38 +0,0 @@
-{
-  "version": 1,
-  "timestamp": 1760073184,
-  "checksum": "3ebde7026b498f38e4dd85058c995fff4a1a51bdb5a1254ead9a7e89030b1b76",
-  "schema": {
-    "Name": "logs",
-    "Fields": [
-      {
-        "Name": "group",
-        "Type": 13,
-        "Indexed": true,
-        "Nullable": false,
-        "Comment": "Log group (A-E)"
-      },
-      {
-        "Name": "timestamp",
-        "Type": 13,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Timestamp"
-      },
-      {
-        "Name": "data",
-        "Type": 13,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Random data"
-      },
-      {
-        "Name": "size_bytes",
-        "Type": 5,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Data size in bytes"
-      }
-    ]
-  }
-}

examples/webui/data/logs/wal/CURRENT

@@ -1 +0,0 @@
-151

examples/webui/data/products/CURRENT

@@ -1 +0,0 @@
-MANIFEST-000001

examples/webui/data/products/schema.json

@@ -1,38 +0,0 @@
-{
-  "version": 1,
-  "timestamp": 1760073183,
-  "checksum": "6bfaccc47c2ff24f377b6536a800591958a3680be4f99e8f78c1d8e22e78afd4",
-  "schema": {
-    "Name": "products",
-    "Fields": [
-      {
-        "Name": "product_name",
-        "Type": 13,
-        "Indexed": true,
-        "Nullable": false,
-        "Comment": "Product name"
-      },
-      {
-        "Name": "price",
-        "Type": 12,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Price"
-      },
-      {
-        "Name": "quantity",
-        "Type": 5,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Quantity"
-      },
-      {
-        "Name": "category",
-        "Type": 13,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Category"
-      }
-    ]
-  }
-}

examples/webui/data/products/wal/CURRENT

@@ -1 +0,0 @@
-1

examples/webui/data/users/CURRENT

@@ -1 +0,0 @@
-MANIFEST-000001

examples/webui/data/users/schema.json

@@ -1,38 +0,0 @@
-{
-  "version": 1,
-  "timestamp": 1760073183,
-  "checksum": "da17386c778ecfe06d2560097e7e6daa241f59de569517db3cca7424aec345f4",
-  "schema": {
-    "Name": "users",
-    "Fields": [
-      {
-        "Name": "name",
-        "Type": 13,
-        "Indexed": true,
-        "Nullable": false,
-        "Comment": "User name"
-      },
-      {
-        "Name": "email",
-        "Type": 13,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Email address"
-      },
-      {
-        "Name": "age",
-        "Type": 5,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "Age"
-      },
-      {
-        "Name": "city",
-        "Type": 13,
-        "Indexed": false,
-        "Nullable": false,
-        "Comment": "City"
-      }
-    ]
-  }
-}

examples/webui/data/users/wal/CURRENT

@@ -1 +0,0 @@
-1