feat: automated setup.sh, OCIR login helper with encrypted credentials, README updates

distribution/README.md

@@ -182,26 +182,47 @@ us-ashburn-1.ocir.io/idi1o0a010nx/oci-cis-agent:latest
 
 ## Deployment
 
+### Quick Setup (recommended)
+
+One command — handles authentication, pull, and container startup automatically:
+
+```bash
+bash setup.sh
+```
+
+Output:
+```
+========================================
+  A-Team Security Agent — Setup
+========================================
+
+Authenticating...
+Authenticated.
+Pulling image...
+Starting container on port 8080...
+
+========================================
+  Setup Complete!
+========================================
+
+  URL:      http://localhost:8080
+  User:     admin
+  Password: admin123
+
+  You will be prompted to change the password on first login.
+========================================
+```
+
+Custom port: `PORT=9090 bash setup.sh`
+
 ### Prerequisites
 
 - Docker installed
-- Access to the OCI Container Registry (OCIR)
-- OCI API Key pair (private `.pem` key + fingerprint) for application configuration
-
-### OCIR Authentication
-
-```bash
-docker login us-ashburn-1.ocir.io
-```
-
-- **Username:** `<namespace>/oracleidentitycloudservice/<email>`
-- **Password:** Auth Token (generate in OCI Console > Profile > Auth Tokens)
+- Python 3 with `cryptography` package (auto-installed by setup.sh if missing)
 
 ---
 
-### Option 1 — Docker (any machine)
-
-Run on any machine with Docker installed (Linux, macOS, Windows).
+### Alternative: Manual Docker Run
 
 ```bash
 docker run -d \
@@ -214,7 +235,7 @@ docker run -d \
   us-ashburn-1.ocir.io/idi1o0a010nx/oci-cis-agent:latest
 ```
 
-Access: `http://localhost:8080`
+> Requires OCIR authentication: `docker login us-ashburn-1.ocir.io`
 
 ---