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Made-with: Cursor

_docs/02_document/modules/common_extensions_string_extensions.md

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+# Module: Azaion.Common.Extensions.StringExtensions
+
+## Purpose
+Provides a `ToSnakeCase` string extension for converting PascalCase/camelCase identifiers to snake_case.
+
+## Public Interface
+
+| Method | Signature | Description |
+|--------|-----------|-------------|
+| `ToSnakeCase` | `static string ToSnakeCase(this string text)` | Converts PascalCase to snake_case (e.g., `PasswordHash` → `password_hash`) |
+
+## Internal Logic
+Iterates characters; prepends `_` before each uppercase letter and lowercases it. Returns original text for null/empty/single-char inputs.
+
+## Dependencies
+- `System.Text.StringBuilder` (BCL only)
+
+## Consumers
+- `AzaionDbSchemaHolder` — uses `ToSnakeCase` to map C# property names to PostgreSQL column names
+
+## Data Models
+None.
+
+## Configuration
+None.
+
+## External Integrations
+None.
+
+## Security
+None.
+
+## Tests
+None.