Function durationSchema

durationSchema(
defaultValue: string,
): ZodDefault<ZodEffects<ZodString, number, string>>
Zod schema for human-readable duration environment variables.

Accepts strings like "15m", "1.5h", "500ms", "2d", or plain millisecond counts like "900000". Transforms the input to a number (milliseconds) via parseDuration.
Parameters
- defaultValue: string
  Default value as human-readable string (e.g. '15m')
Returns ZodDefault<ZodEffects<ZodString, number, string>>
Zod schema that accepts string and outputs number (milliseconds)
Example
```
// In env schema:
MCP_RATE_LIMIT_WINDOW_MS: durationSchema('15m').pipe(z.number().int().min(1000)),
OTEL_METRIC_EXPORT_INTERVAL: durationSchema('60s'),
```
- Defined in src/utils/zod-helpers.ts:150