Fix BASE_URL config loading, add tasks/projects; robust .env path resolution

- Config: try ENV_FILE, .env, ../.env for loading; trim trailing slash from BaseURL
- Log BASE_URL at server startup for verification
- .env.example: document BASE_URL
- Tasks, projects, tags, migrations and related API/handlers

Made-with: Cursor

internal/repository/task_dependencies.sql.go

@@ -0,0 +1,147 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.30.0
+// source: task_dependencies.sql
+
+package repository
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const addTaskDependency = `-- name: AddTaskDependency :exec
+INSERT INTO task_dependencies (task_id, blocks_task_id)
+VALUES ($1, $2)
+ON CONFLICT (task_id, blocks_task_id) DO NOTHING
+`
+
+type AddTaskDependencyParams struct {
+	TaskID       pgtype.UUID `json:"task_id"`
+	BlocksTaskID pgtype.UUID `json:"blocks_task_id"`
+}
+
+func (q *Queries) AddTaskDependency(ctx context.Context, arg AddTaskDependencyParams) error {
+	_, err := q.db.Exec(ctx, addTaskDependency, arg.TaskID, arg.BlocksTaskID)
+	return err
+}
+
+const checkDirectCircularDependency = `-- name: CheckDirectCircularDependency :one
+SELECT EXISTS(
+  SELECT 1 FROM task_dependencies
+  WHERE task_id = $2 AND blocks_task_id = $1
+) AS has_circle
+`
+
+type CheckDirectCircularDependencyParams struct {
+	BlocksTaskID pgtype.UUID `json:"blocks_task_id"`
+	TaskID       pgtype.UUID `json:"task_id"`
+}
+
+// Direct cycle: blocks_task_id is blocked by task_id (would create A->B and B->A)
+func (q *Queries) CheckDirectCircularDependency(ctx context.Context, arg CheckDirectCircularDependencyParams) (bool, error) {
+	row := q.db.QueryRow(ctx, checkDirectCircularDependency, arg.BlocksTaskID, arg.TaskID)
+	var has_circle bool
+	err := row.Scan(&has_circle)
+	return has_circle, err
+}
+
+const listTaskBlockers = `-- name: ListTaskBlockers :many
+SELECT t.id, t.owner_id, t.title, t.description, t.status, t.priority, t.due_date, t.completed_at, t.created_at, t.updated_at, t.deleted_at, t.project_id, t.parent_id, t.sort_order, t.recurrence_rule FROM tasks t
+JOIN task_dependencies td ON td.blocks_task_id = t.id
+WHERE td.task_id = $1 AND t.deleted_at IS NULL
+`
+
+func (q *Queries) ListTaskBlockers(ctx context.Context, taskID pgtype.UUID) ([]Task, error) {
+	rows, err := q.db.Query(ctx, listTaskBlockers, taskID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	items := []Task{}
+	for rows.Next() {
+		var i Task
+		if err := rows.Scan(
+			&i.ID,
+			&i.OwnerID,
+			&i.Title,
+			&i.Description,
+			&i.Status,
+			&i.Priority,
+			&i.DueDate,
+			&i.CompletedAt,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+			&i.DeletedAt,
+			&i.ProjectID,
+			&i.ParentID,
+			&i.SortOrder,
+			&i.RecurrenceRule,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const listTasksBlockedBy = `-- name: ListTasksBlockedBy :many
+SELECT t.id, t.owner_id, t.title, t.description, t.status, t.priority, t.due_date, t.completed_at, t.created_at, t.updated_at, t.deleted_at, t.project_id, t.parent_id, t.sort_order, t.recurrence_rule FROM tasks t
+JOIN task_dependencies td ON td.task_id = t.id
+WHERE td.blocks_task_id = $1 AND t.deleted_at IS NULL
+`
+
+func (q *Queries) ListTasksBlockedBy(ctx context.Context, blocksTaskID pgtype.UUID) ([]Task, error) {
+	rows, err := q.db.Query(ctx, listTasksBlockedBy, blocksTaskID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	items := []Task{}
+	for rows.Next() {
+		var i Task
+		if err := rows.Scan(
+			&i.ID,
+			&i.OwnerID,
+			&i.Title,
+			&i.Description,
+			&i.Status,
+			&i.Priority,
+			&i.DueDate,
+			&i.CompletedAt,
+			&i.CreatedAt,
+			&i.UpdatedAt,
+			&i.DeletedAt,
+			&i.ProjectID,
+			&i.ParentID,
+			&i.SortOrder,
+			&i.RecurrenceRule,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const removeTaskDependency = `-- name: RemoveTaskDependency :exec
+DELETE FROM task_dependencies
+WHERE task_id = $1 AND blocks_task_id = $2
+`
+
+type RemoveTaskDependencyParams struct {
+	TaskID       pgtype.UUID `json:"task_id"`
+	BlocksTaskID pgtype.UUID `json:"blocks_task_id"`
+}
+
+func (q *Queries) RemoveTaskDependency(ctx context.Context, arg RemoveTaskDependencyParams) error {
+	_, err := q.db.Exec(ctx, removeTaskDependency, arg.TaskID, arg.BlocksTaskID)
+	return err
+}