Ajoute fiche d'identité informatique, catalogue prestataires et schémas draw.io

- Fiche d'identité par organisation (technicien référent, FAI, IP publiques,
  prestataires liés) accessible depuis un nouveau menu.
- Nouveau module Prestataires dédié (catalogue léger réutilisable entre
  communes, avec journal de suivi des échanges) plutôt que de détourner les
  organisations de type "Fournisseur".
- Nouveau menu Infrastructure par organisation avec schémas réseau/fonctionnel
  édités via draw.io embarqué (URL configurable, cf. réglages admin).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

database/migrations/2026_08_21_090000_add_identity_card_fields_to_organizations_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::table('organizations', function (Blueprint $table) {
+            $table->foreignId('technician_user_id')->nullable()->after('glpi_entity_id')->constrained('users')->nullOnDelete();
+            $table->string('isp_name')->nullable()->after('technician_user_id');
+            $table->json('public_ips')->nullable()->after('isp_name');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('organizations', function (Blueprint $table) {
+            $table->dropConstrainedForeignId('technician_user_id');
+            $table->dropColumn(['isp_name', 'public_ips']);
+        });
+    }
+};

database/migrations/2026_08_21_090001_create_providers_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('providers', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('logo_path')->nullable();
+            $table->string('phone')->nullable();
+            $table->string('email')->nullable();
+            $table->string('website')->nullable();
+            $table->text('notes')->nullable();
+            $table->timestamps();
+            $table->softDeletes();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('providers');
+    }
+};

database/migrations/2026_08_21_090002_create_organization_provider_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('organization_provider', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('organization_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('provider_id')->constrained()->cascadeOnDelete();
+            $table->string('label')->nullable();
+            $table->timestamps();
+
+            $table->unique(['organization_id', 'provider_id', 'label'], 'organization_provider_unique');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('organization_provider');
+    }
+};

database/migrations/2026_08_21_090003_create_provider_log_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('provider_log_entries', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('provider_id')->constrained()->cascadeOnDelete();
+            $table->string('category');
+            $table->text('note');
+            $table->foreignId('created_by')->nullable()->constrained('users')->nullOnDelete();
+            $table->timestamp('created_at')->useCurrent();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('provider_log_entries');
+    }
+};