docs: add adoption guide

Author: OgeonX-Ai

docs/adoption/README.md

@@ -0,0 +1,33 @@
+# Adoption Guide
+
+Use this guide to apply AI-OS to a real project.
+
+## Adoption flow
+
+```mermaid
+flowchart TD
+    A[Target repository] --> B[Add AGENTS.md]
+    B --> C[Add project context]
+    C --> D[Map commands]
+    D --> E[Select loops]
+    E --> F[Add verifiers]
+    F --> G[Run first task]
+    G --> H[Record memory]
+```
+
+## Steps
+
+1. Copy `templates/agent-instructions-template.md` into the target repository as `AGENTS.md`.
+2. Copy `templates/complete-project-context.md` into the target repository docs.
+3. Fill in build, test, lint, release, and security commands.
+4. Choose the relevant loop for the first task.
+5. Run the task through plan, work, verify, and document.
+6. Store lessons in project memory.
+
+## Good first tasks
+
+- improve README
+- add missing tests
+- repair CI docs
+- document release process
+- add repository context