feat: [QA][POLICY] Branch Protection + Mandatory Review Policy for All Repos (#918)

Refs #918
Agent: groq

org/README.md

@@ -0,0 +1,14 @@
+# Branch Protection Policy
+
+All repositories must follow these rules for the `main` branch:
+
+- 🔐 **Require Pull Request for Merge**
+- 👥 **Require 1 approval**
+- 🔄 **Dismiss stale approvals**
+- 🚫 **Block force push**
+- 🚫 **Block branch deletion**
+- 🧪 **Default reviewers**: `@perplexity`
+- 🧪 **Required reviewers**:
+  - `@Timmy` on `hermes-agent`
+
+All changes must be reviewed and CI must pass before merging.