chore: Fix trailing whitespace across project files

Automated fix from pre-commit hooks (trailing-whitespace, end-of-file-fixer).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.docs/IMPLEMENTATION-gitea-bigbox-deployment.md

@@ -105,15 +105,15 @@ Developer Machine
 ```
 Public (via Caddy on terraphim.cloud):
   git.terraphim.cloud ───────▶ localhost:3000 (Gitea Web)
-  
+
 Tailscale Network Only (100.106.66.7):
   100.106.66.7:9000 ─────────▶ Prometheus
   100.106.66.7:8333 ─────────▶ SeaweedFS S3 API
-  
+
 Internal Docker Network Only:
   SeaweedFS Master, Volume, Filer (no external ports)
   PostgreSQL (no external ports)
-  
+
 SSH (Port 222):
   All interfaces - for Git over SSH
 ```
@@ -452,7 +452,7 @@ services:
 # Gitea Web Interface - Public via terraphim.cloud domain
 git.terraphim.cloud {
     reverse_proxy localhost:3000
-    
+
     # Logging
     log {
         output file /var/log/caddy/gitea-access.log
@@ -649,7 +649,7 @@ curl -s http://localhost:2019/config/apps/http/servers/srv0/routes | grep -q "gi
 # Alternative: If API fails, backup to updating Caddyfile and reloading
 # echo "Adding Gitea configuration to Caddyfile..."
 # sudo tee -a /etc/caddy/Caddyfile > /dev/null << 'EOF'
-# 
+#
 # # Gitea Web Interface
 # git.terraphim.cloud {
 #     reverse_proxy localhost:3000
@@ -659,7 +659,7 @@ curl -s http://localhost:2019/config/apps/http/servers/srv0/routes | grep -q "gi
 #     }
 # }
 # EOF
-# 
+#
 # # Validate and reload
 # sudo caddy validate --config /etc/caddy/Caddyfile && sudo caddy reload --config /etc/caddy/Caddyfile