Add AGENT.md behavior policy from react-template

[Copilot]

Adds AI agent behavior policy documentation to establish consistent agent interaction patterns across repositories.

Changes

• Added AGENT.md - Copied from jagoda11/react-template@335f395 defining:
  • Trusted vs untrusted instruction sources (configs over comments)
  • Security guidelines (OWASP-aligned: no hardcoded secrets, sanitize inputs)
  • Architectural patterns (layered responsibilities, schema-first boundaries)
  • Code modification policies (no rule relaxation, respect existing lint/test setup)

Note

File contains React-specific references (dangerouslySetInnerHTML, React hooks, Zod validation) that may warrant Angular-specific adaptations in follow-up work.

Original prompt

Copy the content of the "AGENT.md" file from the repository jagoda11/react-template and add it to the repository jagoda11/angular-template. Place the file in the root directory of the Angular template repository. The AGENT.md file can be found here.

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[Jagoda11]

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