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_docs/02_document/modules/common_configs_jwt_config.md

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+# Module: Azaion.Common.Configs.JwtConfig
+
+## Purpose
+Configuration POCO for JWT token generation parameters, bound from `appsettings.json` section `JwtConfig`.
+
+## Public Interface
+
+| Property | Type | Description |
+|----------|------|-------------|
+| `Issuer` | `string` | Token issuer claim |
+| `Audience` | `string` | Token audience claim |
+| `Secret` | `string` | HMAC-SHA256 signing key |
+| `TokenLifetimeHours` | `double` | Token expiry duration in hours |
+
+## Internal Logic
+None — pure data class.
+
+## Dependencies
+None.
+
+## Consumers
+- `Program.cs` — reads `JwtConfig` to configure JWT Bearer authentication middleware
+- `AuthService.CreateToken` — uses Issuer, Audience, Secret, TokenLifetimeHours to build JWT tokens
+
+## Data Models
+None.
+
+## Configuration
+Bound via `builder.Configuration.GetSection(nameof(JwtConfig))`. Expected env var: `ASPNETCORE_JwtConfig__Secret`.
+
+## External Integrations
+None.
+
+## Security
+`Secret` is the symmetric signing key for all JWT tokens. Must be kept secret and sufficiently long for HMAC-SHA256.
+
+## Tests
+None.