docs: add verification gates

Author: OgeonX-Ai

docs/verifiers/README.md

@@ -0,0 +1,41 @@
+# Verification Gates
+
+AI-OS treats verification as the decision maker.
+
+## Verification pipeline
+
+```mermaid
+flowchart TD
+    Change[Change] --> Build[Build]
+    Build --> Typecheck[Typecheck]
+    Typecheck --> Lint[Lint]
+    Lint --> Unit[Unit Tests]
+    Unit --> Integration[Integration Tests]
+    Integration --> Security[Security Review]
+    Security --> Performance[Performance Review]
+    Performance --> Docs[Documentation Review]
+    Docs --> Gate{All required gates passed?}
+    Gate -- No --> Diagnose[Diagnose and Loop Back]
+    Gate -- Yes --> Done[Done]
+```
+
+## Strong verifiers
+
+- build
+- typecheck
+- lint
+- unit tests
+- integration tests
+- smoke tests
+- dependency audit
+- container build
+- infrastructure validation
+- benchmark
+
+## Weak verifiers
+
+- self-review
+- checklist review
+- manual reading
+
+Weak verifiers can support decisions, but they should not replace strong verifiers when strong verifiers are available.