Feature Request

Add .gitignore-style exclusion handling to azd code deploy via a user-customizable .azdignore file.

Background

Follow-up to the "Feature/code deploy zip upload" PR. From the review discussion:

Good idea. Will add .azdignore file support as a follow-up PR. For now, added .azure/, .env, and .env.* to the hardcoded exclusion list to address the immediate security concern. The follow-up will let users customize exclusions.

Today, exclusions are hardcoded. Users need a way to customize what gets uploaded (e.g., node_modules/, build artifacts, local caches).

Proposed

• Support a .azdignore file at the service source root using standard .gitignore syntax.
• Keep hardcoded security exclusions (.azure/, .env, .env.*, .git/) always applied; not overridable via negation.
• Document behavior and add tests.