chore(api): Retrieve DEFAULT_RATE_LIMIT_PER_MIN using zod

[marcindobry]

The existing usage of DEFAULT_RATE_LIMIT_PER_MIN env var had 2 issues

• It didn't use zod, which is the standard way of parsing and using env vars in the codebase
• It defaulted to 3500 if it's missing, which is a lot higher than our actual current base default.

This PR addresses both of these. The default value is set to 200, which is our current base default, but only for type-safety reasons. We make sure to set this value in all services and environments that would use this variable regardless.

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Switch rate-limit default to zod-parsed env & lower fallback value

Replaces direct process.env access with typed retrieval via envs object and adjusts the fallback value of DEFAULT_RATE_LIMIT_PER_MIN from 3500 to 200. Keeps rate-limiter logic unchanged otherwise and aligns with the codebase’s standard zod-based env parsing.

Key Changes

• Removed inline parsing of process.env['DEFAULT_RATE_LIMIT_PER_MIN'] in packages/server/lib/middleware/ratelimit.middleware.ts
• Added envs.DEFAULT_RATE_LIMIT_PER_MIN import and usage
• Updated zod schema in packages/utils/lib/environment/parse.ts to .default(200) instead of leaving undefined or defaulting in code

Affected Areas

• packages/server/lib/middleware/ratelimit.middleware.ts
• packages/utils/lib/environment/parse.ts

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This summary was automatically generated by @propel-code-bot

[TBonnin]

🚀

[kaposke]

First PR? 😎