feat: person tags system - org-level skills with self-reported and organiser-assigned sources

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/database/migrations/2026_04_10_100000_create_person_tags_table.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+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('person_tags', function (Blueprint $table) {
+            $table->ulid('id')->primary();
+            $table->foreignUlid('organisation_id')->constrained()->cascadeOnDelete();
+            $table->string('name', 50);
+            $table->string('category', 50)->nullable();
+            $table->string('icon', 50)->nullable();
+            $table->string('color', 7)->nullable();
+            $table->boolean('is_active')->default(true);
+            $table->integer('sort_order')->default(0);
+            $table->timestamps();
+
+            $table->index(['organisation_id', 'is_active', 'sort_order']);
+            $table->unique(['organisation_id', 'name']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('person_tags');
+    }
+};

api/database/migrations/2026_04_10_110000_create_user_organisation_tags_table.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+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('user_organisation_tags', function (Blueprint $table) {
+            $table->id();
+            $table->foreignUlid('user_id')->constrained()->cascadeOnDelete();
+            $table->foreignUlid('organisation_id')->constrained()->cascadeOnDelete();
+            $table->foreignUlid('person_tag_id')->constrained()->cascadeOnDelete();
+            $table->enum('source', ['self_reported', 'organiser_assigned']);
+            $table->foreignUlid('assigned_by_user_id')->nullable()->constrained('users')->nullOnDelete();
+            $table->enum('proficiency', ['beginner', 'experienced', 'expert'])->nullable();
+            $table->text('notes')->nullable();
+            $table->timestamp('assigned_at');
+
+            $table->unique(['user_id', 'organisation_id', 'person_tag_id', 'source'], 'uot_user_org_tag_source_unique');
+            $table->index(['user_id', 'organisation_id']);
+            $table->index('person_tag_id');
+            $table->index(['organisation_id', 'person_tag_id', 'proficiency'], 'uot_org_tag_proficiency_index');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('user_organisation_tags');
+    }
+};