architecture: add context loading guide

Author: OgeonX-Ai

docs/architecture/context-loading.md

@@ -0,0 +1,29 @@
+# Context Loading
+
+Context loading is the first technical step in AI-OS work.
+
+## Context loading flow
+
+```mermaid
+flowchart TD
+    A[Task] --> B[Read README]
+    B --> C[Read AGENTS]
+    C --> D[Read project context]
+    D --> E[Inspect relevant docs]
+    E --> F[Inspect relevant files]
+    F --> G[Select loop]
+```
+
+## Required context
+
+- repository purpose
+- active task goal
+- relevant documentation
+- relevant files
+- build and test commands
+- risk boundaries
+- project memory
+
+## Output
+
+The agent should know which loop to use and which files are likely to matter before implementation starts.