feat: complete tag management and UI integration

- Marked multiple tasks as completed in TODO.md related to tag management features.
- Replaced manual tag input with `TagInput` component in `CreateTaskForm`, `EditTaskForm`, and `QuickAddTask` for better UX.
- Updated `TaskCard` to display tags using `TagDisplay` with color support.
- Enhanced `TasksService` to manage task-tag relationships with CRUD operations.
- Integrated tag management into the global context for better accessibility across components.

prisma/migrations/20250914143611_init_without_tags_json/migration.sql

@@ -0,0 +1,50 @@
+-- CreateTable
+CREATE TABLE "tasks" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "title" TEXT NOT NULL,
+    "description" TEXT,
+    "status" TEXT NOT NULL DEFAULT 'todo',
+    "priority" TEXT NOT NULL DEFAULT 'medium',
+    "source" TEXT NOT NULL,
+    "sourceId" TEXT,
+    "dueDate" DATETIME,
+    "completedAt" DATETIME,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" DATETIME NOT NULL,
+    "jiraProject" TEXT,
+    "jiraKey" TEXT,
+    "assignee" TEXT
+);
+
+-- CreateTable
+CREATE TABLE "tags" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "name" TEXT NOT NULL,
+    "color" TEXT NOT NULL DEFAULT '#6b7280'
+);
+
+-- CreateTable
+CREATE TABLE "task_tags" (
+    "taskId" TEXT NOT NULL,
+    "tagId" TEXT NOT NULL,
+
+    PRIMARY KEY ("taskId", "tagId"),
+    CONSTRAINT "task_tags_taskId_fkey" FOREIGN KEY ("taskId") REFERENCES "tasks" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
+    CONSTRAINT "task_tags_tagId_fkey" FOREIGN KEY ("tagId") REFERENCES "tags" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateTable
+CREATE TABLE "sync_logs" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "source" TEXT NOT NULL,
+    "status" TEXT NOT NULL,
+    "message" TEXT,
+    "tasksSync" INTEGER NOT NULL DEFAULT 0,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "tasks_source_sourceId_key" ON "tasks"("source", "sourceId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "tags_name_key" ON "tags"("name");

prisma/migrations/migration_lock.toml

@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (e.g., Git)
+provider = "sqlite"