feat: move revision tracking to ExportRecord, add perceptual hash comparison, cut list modal, and auto-start API

- Move Revision from Drawing to ExportRecord so each export captures its own revision snapshot
- Add Hamming distance comparison for perceptual hashes (tolerance of 10 bits) to avoid false revision bumps
- Replace CoenM.ImageHash with inline DifferenceHash impl (compatible with ImageSharp 3.x)
- Increase PDF render DPI from 72 to 150 for better hash fidelity
- Add download-dxfs-by-drawing endpoint for cross-export DXF zip downloads
- Prefix DXF filenames with equipment number when no drawing number is present
- Pass original filename to storage service for standalone part exports
- Auto-start FabWorks.Api from ExportDXF client if not already running
- Add cut list modal with copy-to-clipboard in the web UI
- Update PDF hash on existing export records after upload
- Bump static asset cache versions to v3

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

.claude/settings.local.json

@@ -2,7 +2,45 @@
   "permissions": {
     "allow": [
       "Bash(git add:*)",
-      "Bash(git commit:*)"
+      "Bash(git commit:*)",
+      "Bash(dotnet build:*)",
+      "Bash(msbuild:*)",
+      "Bash(powershell.exe -File \"C:\\Users\\aisaacs\\.claude\\skills\\roslyn-bridge\\scripts\\rb.ps1\" getprojects)",
+      "Bash(powershell -Command \"& C:\\Users\\aisaacs\\.claude\\skills\\roslyn-bridge\\scripts\\rb.ps1 instances\")",
+      "Bash(powershell -Command \"& C:\\Users\\aisaacs\\.claude\\skills\\roslyn-bridge\\scripts\\rb.ps1 build -ProjectName ExportDXF\")",
+      "Bash(powershell -Command \"& C:\\Users\\aisaacs\\.claude\\skills\\roslyn-bridge\\scripts\\rb.ps1 projects\")",
+      "Bash(powershell -Command \"& C:\\Users\\aisaacs\\.claude\\skills\\roslyn-bridge\\scripts\\rb.ps1 errors\")",
+      "Bash(powershell -Command:*)",
+      "Bash(curl:*)",
+      "Bash(python:*)",
+      "Skill(roslyn-bridge)",
+      "Bash(dotnet add:*)",
+      "Bash(nuget restore:*)",
+      "mcp__RoslynBridge__get_solution_overview",
+      "mcp__RoslynBridge__get_files",
+      "mcp__RoslynBridge__list_instances",
+      "mcp__RoslynBridge__refresh_workspace",
+      "mcp__RoslynBridge__get_diagnostics",
+      "mcp__RoslynBridge__build_project",
+      "mcp__RoslynBridge__get_projects",
+      "Bash(findstr:*)",
+      "Bash(Select-String -Pattern \"error|Build succeeded\")",
+      "Bash(Select-String -NotMatch \"CA1416\")",
+      "Bash(dir:*)",
+      "Bash(git checkout:*)",
+      "Bash(ls \"C:\\\\Users\\\\aisaacs\\\\Desktop\\\\Projects\\\\ExportDXF\\\\docs\\\\plans\"\" 2>nul || echo \"No plans dir \")",
+      "Bash(dotnet new:*)",
+      "Bash(dotnet sln:*)",
+      "Bash(del \"C:\\\\Users\\\\aisaacs\\\\Desktop\\\\Projects\\\\ExportDXF\\\\FabWorks.Core\\\\Class1.cs\")",
+      "Bash(copy \"S:\\\\4980 GMCH Lockport\\\\4980 A05 Degreaser Casing\\\\4980 A05-1 Access door\\\\Forms\\\\4980 A05-1 PT02.pgm\" \"C:\\\\Users\\\\aisaacs\\\\Desktop\\\\Projects\\\\ExportDXF\\\\FabWorks.Tests\\\\TestData\\\\sample.pgm\")",
+      "Bash(dotnet test:*)",
+      "Bash(del \"C:\\\\Users\\\\aisaacs\\\\Desktop\\\\Projects\\\\ExportDXF\\\\FabWorks.Api\\\\FabWorks.Api.http\")",
+      "Bash(dotnet ef:*)",
+      "Bash(git log:*)",
+      "mcp__RoslynBridge__get_namespace_types",
+      "Bash(test:*)",
+      "mcp__RoslynBridge__search_symbol",
+      "mcp__RoslynBridge__search_code"
     ],
     "deny": [],
     "ask": []