chore: update project structure, naming, and add reporting infrastructure

- Update all 7 phase docs with source/target location references
  (golang/ for Go source, dotnet/ for .NET version)
- Rename NATS.Server to ZB.MOM.NatsNet.Server in phase 4-7 docs
- Update solution layout to dotnet/src/ and dotnet/tests/ structure
- Create CLAUDE.md with project summary and phase links
- Update .gitignore: track porting.db, add standard .NET patterns
- Add golang/nats-server as git submodule
- Add reports/generate-report.sh and pre-commit hook
- Add documentation_rules.md to version control

.gitignore

@@ -1,12 +1,29 @@
-# SQLite database (local state)
-porting.db
+# SQLite transient files (WAL mode)
 porting.db-journal
 porting.db-wal
 porting.db-shm
 
 # .NET build output
-tools/NatsNet.PortTracker/bin/
-tools/NatsNet.PortTracker/obj/
+**/bin/
+**/obj/
+
+# .NET user / IDE integration files
+*.user
+*.suo
+*.userosscache
+*.sln.docstates
+
+# Visual Studio cache/options directory
+.vs/
+
+# NuGet
+*.nupkg
+*.snupkg
+project.lock.json
+project.fragment.lock.json
+*.nuget.props
+*.nuget.targets
+packages/
 
 # Go build output
 tools/go-analyzer/go-analyzer
@@ -14,3 +31,10 @@ tools/go-analyzer/go-analyzer
 # OS files
 .DS_Store
 Thumbs.db
+
+# IDE files
+.idea/
+.vscode/*.code-workspace
+.vscode/settings.json
+.vscode/tasks.json
+.vscode/launch.json