feat(project): domain types and sqlc queries for project/requirement/issue

internal/project/queries/projects.sql

@@ -0,0 +1,35 @@
+-- name: CreateProject :one
+INSERT INTO projects (id, slug, name, description, visibility, owner_id)
+VALUES ($1, $2, $3, $4, $5, $6)
+RETURNING id, slug, name, description, visibility, owner_id, archived_at, created_at, updated_at;
+
+-- name: GetProjectBySlug :one
+SELECT id, slug, name, description, visibility, owner_id, archived_at, created_at, updated_at
+FROM projects WHERE slug = $1;
+
+-- name: GetProjectByID :one
+SELECT id, slug, name, description, visibility, owner_id, archived_at, created_at, updated_at
+FROM projects WHERE id = $1;
+
+-- name: ListProjects :many
+SELECT id, slug, name, description, visibility, owner_id, archived_at, created_at, updated_at
+FROM projects
+WHERE (sqlc.arg('include_archived')::bool OR archived_at IS NULL)
+ORDER BY created_at DESC;
+
+-- name: UpdateProject :one
+UPDATE projects
+SET name        = $2,
+    description = $3,
+    visibility  = $4,
+    updated_at  = now()
+WHERE id = $1
+RETURNING id, slug, name, description, visibility, owner_id, archived_at, created_at, updated_at;
+
+-- name: ArchiveProject :exec
+UPDATE projects SET archived_at = now(), updated_at = now()
+WHERE id = $1 AND archived_at IS NULL;
+
+-- name: UnarchiveProject :exec
+UPDATE projects SET archived_at = NULL, updated_at = now()
+WHERE id = $1 AND archived_at IS NOT NULL;