Add repo AGENTS guidance standard

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: MariusStorhaug

AGENTS.md

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+# Agents
+
+## Purpose
+
+Use this file to understand how agents should gather context and execute work in
+this repository.
+
+## Core operating standard
+
+1. Treat repository controls (linters, security checks, policies) as correct by
+   default.
+2. Align implementation with controls before considering exceptions.
+3. If an exception is needed, make it explicit, minimal, and documented in code
+   and PR context. Never bypass controls silently.
+
+## Canonical context resolution
+
+Determine repository identity from Git metadata (for example, `origin` remote and
+repository settings). Do not hardcode a specific owner or host unless the task
+explicitly requires it.
+
+Process context in this order:
+
+| Order | Source | What to read first | Why |
+| --- | --- | --- | --- |
+| 1 | Local repository | `README.md`, `CONTRIBUTING.md`, local docs index/start page | Local behavior and contribution rules are authoritative for this repo. |
+| 2 | Project/framework guidance | Framework or shared project docs referenced by this repo | Align with shared implementation patterns used by sibling repos. |
+| 3 | Central organization guidance | Organization-level docs and standards | Apply global policy after local/project specifics are known. |
+
+## Documentation standards for commands and repos
+
+1. Use canonical repository URLs in docs (full URLs such as
+   `https://github.com/owner/repo`) instead of ambiguous short names.
+2. For install and synchronization instructions, provide equivalent examples for
+   native shells on Windows, macOS, and Linux.