fix: Address Gemini Code Assist review feedback

- Repository URL consistency: Updated all references to BeehiveInnovations/zen-mcp-server format
- Documentation clarity: Fixed misleading table headers and improved Docker configuration examples
- File conventions: Added missing final newlines to all files
- Configuration consistency: Clarified API key placeholder format in documentation

Addresses all points raised in PR #17 review by Gemini Code Assist.

🤖 Generated with Claude Code

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

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -12,7 +12,7 @@ body:
     attributes:
       label: Project Version
       description: "Which version are you using? (e.g., Docker image tag like `latest` or `v1.2.3`, or a git commit SHA)"
-      placeholder: "e.g., ghcr.io/beehiveinnovations/gemini-mcp-server:latest"
+      placeholder: "e.g., ghcr.io/beehiveinnovations/zen-mcp-server:latest"
     validations:
       required: true
 
@@ -77,4 +77,5 @@ body:
         - label: I have searched the existing issues and this is not a duplicate.
           required: true
         - label: I have confirmed that my `GEMINI_API_KEY` is set correctly.
-          required: true
+          required: true
+