chore: remove obsolete duplicate views/components (superseded code)

Deleted (all superseded, recoverable in git history):
- resources/views/projects/edit.blade.php + ProjectController@edit()
- resources/views/projects/create.blade.php + ProjectController@create()
  (projects.create/edit routes point to the Livewire ProjectForm; these
   controller methods were excluded from the resource and never invoked)
- app/Livewire/ProjectEditTabs.php + project-edit-tabs.blade.php
  (old tabbed editor, functionality recovered inside ProjectForm)
- app/Livewire/LayerUpload.php + layer-upload.blade.php (superseded by LayerManager)

Kept resources/views/livewire/issues/issue-manager.blade.php as a reference
for the future rich Issues screen (its companion component was never built).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/Http/Controllers/ProjectController.php

@@ -19,15 +19,6 @@ class ProjectController extends Controller
         return view('projects.index');
     }
 
-    /**
-     * Show the form for creating a new resource.
-     */
-    public function create()
-    {
-        Gate::authorize('create projects');
-        return view('projects.create');
-    }
-
     /**
      * Store a newly created resource in storage.
      */
@@ -58,15 +49,6 @@ class ProjectController extends Controller
         return redirect()->route('projects.map', $project);
     }
 
-    /**
-     * Show the form for editing the specified resource.
-     */
-    public function edit(Project $project)   // <--- ROUTE MODEL BINDING
-    {
-        Gate::authorize('edit projects', $project);
-        return view('projects.edit', compact('project'));
-    }
-
     /**
      * Update the specified resource in storage.
      */