docs: consolidate and restructure documentation architecture

- Remove outdated root-level documentation files
  - Delete IMPLEMENTATION_STATUS.md, WORK_IN_PROGRESS.md, UI_IMPROVEMENTS_SUMMARY.md, CLAUDE.md

- Reorganize documentation into docs/ folder
  - Move UNIFIED_EDITOR_EXPERIENCES.md → docs/unified-editor-experiences.md
  - Move DATATABLE_MIGRATION_PROGRESS.md → docs/datatable-migration-progress.md
  - Move SEED_SCRIPT_README.md → docs/seed-script-readme.md

- Create comprehensive new documentation
  - Add docs/implementation-status.md with production readiness assessment
  - Add docs/work-in-progress.md with active development tracking
  - Add docs/development-achievements.md consolidating all major accomplishments

- Update documentation hub
  - Enhance docs/README.md with complete 13-document structure
  - Organize into logical categories: Core, Status, Achievements
  - Provide clear navigation and purpose for each document

Features:
- 73% code reduction achievement through unified editor experiences
- Complete DataTable migration with enterprise features
- Comprehensive seed database with realistic research scenarios
- Production-ready status with 100% backend, 95% frontend completion
- Clean documentation architecture supporting future development

Breaking Changes: None - documentation restructuring only
Migration: Documentation moved to docs/ folder, no code changes required

src/components/admin/admin-user-table.tsx

@@ -1,28 +1,28 @@
 "use client";
 
 import { useState } from "react";
-import { Button } from "~/components/ui/button";
 import { Badge } from "~/components/ui/badge";
+import { Button } from "~/components/ui/button";
+import {
+    Dialog,
+    DialogContent,
+    DialogDescription,
+    DialogHeader,
+    DialogTitle,
+    DialogTrigger
+} from "~/components/ui/dialog";
 import { Input } from "~/components/ui/input";
 import { Label } from "~/components/ui/label";
 import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
+    Select,
+    SelectContent,
+    SelectItem,
+    SelectTrigger,
+    SelectValue
 } from "~/components/ui/select";
-import {
-  Dialog,
-  DialogContent,
-  DialogDescription,
-  DialogHeader,
-  DialogTitle,
-  DialogTrigger,
-} from "~/components/ui/dialog";
-import { api } from "~/trpc/react";
-import { formatRole, getAvailableRoles } from "~/lib/auth-client";
 import type { SystemRole } from "~/lib/auth-client";
+import { formatRole, getAvailableRoles } from "~/lib/auth-client";
+import { api } from "~/trpc/react";
 
 interface UserWithRoles {
   id: string;