Docs: Update version references to v0.25.4 in READMEs and docs (#14912)

### What problem does this PR solve?

- Update version tags in README files (including translations) from
v0.25.3 to v0.25.4
- Modify Docker image references and documentation to reflect new
version
- Update version badges and image descriptions
- Maintain consistency across all language variants of README files

### Type of change

- [x] Documentation Update

tools/scripts/README.md

@@ -275,8 +275,8 @@ python db_schema_sync.py [OPTIONS]
 ### Version Format
 
 Version must be in format `vxx.xx.xx` where `xx` are digits:
-- Valid: `v0.25.3`, `v1.0.0`, `v10.20.30`
-- Invalid: `0.25.3`, `v0.25`, `v0.25.3.1`
+- Valid: `v0.25.4`, `v1.0.0`, `v10.20.30`
+- Invalid: `0.25.4`, `v0.25`, `v0.25.4.1`
 
 ### Migration File Location
 
@@ -287,7 +287,7 @@ tools/migrate/{version_dir}/
 
 Where `{version_dir}` is the version with `.` replaced by `_`.
 
-Example: Version `v0.25.3` → Directory `tools/migrate/v0_25_3/`
+Example: Version `v0.25.4` → Directory `tools/migrate/v0_25_3/`
 
 ### Examples
 
@@ -295,32 +295,32 @@ Example: Version `v0.25.3` → Directory `tools/migrate/v0_25_3/`
 # List all migrations
 python db_schema_sync.py --list \
     --host localhost --port 3306 --user root --password xxx --database rag_flow \
-    --version v0.25.3
+    --version v0.25.4
 
 # Create a new auto-detected migration (new tables, new fields, type changes only)
 python db_schema_sync.py --create \
     --host localhost --port 3306 --user root --password xxx --database rag_flow \
-    --version v0.25.3
+    --version v0.25.4
 
 # Create a migration including dropped fields (destructive!)
 python db_schema_sync.py --create --drop \
     --host localhost --port 3306 --user root --password xxx --database rag_flow \
-    --version v0.25.3
+    --version v0.25.4
 
 # Create a named migration
 python db_schema_sync.py --create --name add_user_table \
     --host localhost --port 3306 --user root --password xxx --database rag_flow \
-    --version v0.25.3
+    --version v0.25.4
 
 # Run all pending migrations
 python db_schema_sync.py --migrate \
     --host localhost --port 3306 --user root --password xxx --database rag_flow \
-    --version v0.25.3
+    --version v0.25.4
 
 # Show schema differences (including removed fields)
 python db_schema_sync.py --diff \
     --host localhost --port 3306 --user root --password xxx --database rag_flow \
-    --version v0.25.3
+    --version v0.25.4
 ```
 
 ## How It Works

tools/scripts/db_schema_sync.py

@@ -55,7 +55,7 @@ def validate_version(version: str) -> bool:
 
 
 def version_to_dirname(version: str) -> str:
-    """Convert version string to valid directory name (e.g., 'v0.25.3' -> 'v0_25_3')"""
+    """Convert version string to valid directory name (e.g., 'v0.25.4' -> 'v0_25_4')"""
     return version.replace('.', '_')
 
 
@@ -839,19 +839,19 @@ def main():
         epilog="""
 Examples:
   # List all migrations
-  python db_schema_sync.py --list --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.3
+  python db_schema_sync.py --list --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.4
   
   # Create migration from model changes
-  python db_schema_sync.py --create --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.3
+  python db_schema_sync.py --create --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.4
   
   # Create migration including dropped fields (destructive!)
-  python db_schema_sync.py --create --drop --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.3
+  python db_schema_sync.py --create --drop --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.4
   
   # Run all pending migrations
-  python db_schema_sync.py --migrate --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.3
+  python db_schema_sync.py --migrate --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.4
   
   # Show schema differences
-  python db_schema_sync.py --diff --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.3
+  python db_schema_sync.py --diff --host localhost --port 3306 --user root --password xxx --database rag_flow --version v0.25.4
 """
     )
     
@@ -864,7 +864,7 @@ Examples:
     
     # Version option
     parser.add_argument('--version', '-v', type=str, required=True, 
-                       help='Version number in format vxx.xx.xx (e.g., v0.25.3)')
+                       help='Version number in format vxx.xx.xx (e.g., v0.25.4)')
     
     # Action options
     parser.add_argument('--list', '-l', action='store_true', help='List all migrations')
@@ -882,7 +882,7 @@ Examples:
     
     # Validate version format
     if not validate_version(args.version):
-        logger.error(f"Invalid version format: {args.version}. Expected format: vxx.xx.xx (e.g., v0.25.3)")
+        logger.error(f"Invalid version format: {args.version}. Expected format: vxx.xx.xx (e.g., v0.25.4)")
         sys.exit(1)
     
     # Validate at least one action is specified