Add external import sources, work history, screening fields and Phase 1 docs

- New ExternalImportSource and ExternalWorkHistoryEntry models, controller and migrations
- Screening fields on external profile imports
- Admin and provider profile views, routes and workflow tests updated
- Phase 1 validation, route inventory, gap report template and roadmap docs
- Add the Google Sheets work-order parser tool (tools/google-sheets-wo-parser)

database/migrations/2026_07_18_000000_create_external_import_sources_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('external_import_sources', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('provider_profile_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('external_profile_import_id')->nullable()->constrained()->nullOnDelete();
+            $table->foreignId('uploaded_by_id')->constrained('users')->cascadeOnDelete();
+            $table->string('platform');
+            $table->string('source_type');
+            $table->string('parse_status')->default('pending');
+            $table->string('review_status')->default('needs_review');
+            $table->string('disk')->default('local');
+            $table->string('path');
+            $table->string('original_name');
+            $table->string('mime_type')->nullable();
+            $table->unsignedBigInteger('size')->default(0);
+            $table->text('provider_notes')->nullable();
+            $table->json('parsed_payload')->nullable();
+            $table->json('parse_warnings')->nullable();
+            $table->timestamp('uploaded_at')->nullable();
+            $table->timestamps();
+
+            $table->index(['provider_profile_id', 'platform']);
+            $table->index(['parse_status', 'review_status']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('external_import_sources');
+    }
+};

database/migrations/2026_07_18_010000_create_external_work_history_entries_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('external_work_history_entries', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('provider_profile_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('external_profile_import_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('external_import_source_id')->nullable()->constrained()->nullOnDelete();
+            $table->string('platform');
+            $table->string('external_work_order_id')->nullable();
+            $table->string('service_title');
+            $table->date('performed_on')->nullable();
+            $table->string('customer_name')->nullable();
+            $table->string('work_type')->nullable();
+            $table->string('location')->nullable();
+            $table->decimal('rating', 3, 2)->nullable();
+            $table->string('status')->nullable();
+            $table->string('source_url')->nullable();
+            $table->string('visibility')->default('private');
+            $table->json('raw_payload')->nullable();
+            $table->timestamps();
+
+            $table->index(['provider_profile_id', 'platform', 'performed_on']);
+            $table->index(['external_profile_import_id', 'performed_on']);
+            $table->unique(['external_profile_import_id', 'platform', 'external_work_order_id'], 'external_work_history_unique_order');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('external_work_history_entries');
+    }
+};

database/migrations/2026_07_18_011000_add_screening_fields_to_external_profile_imports.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('external_profile_imports', function (Blueprint $table) {
+            $table->string('background_check_status')->nullable()->after('verification_status');
+            $table->string('background_check_date')->nullable()->after('background_check_status');
+            $table->string('drug_test_status')->nullable()->after('background_check_date');
+            $table->string('drug_test_date')->nullable()->after('drug_test_status');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('external_profile_imports', function (Blueprint $table) {
+            $table->dropColumn([
+                'background_check_status',
+                'background_check_date',
+                'drug_test_status',
+                'drug_test_date',
+            ]);
+        });
+    }
+};