feat(workspace): sqlc queries for workspace/worktree/credential

internal/workspace/queries/worktrees.sql

@@ -0,0 +1,39 @@
+-- name: CreateWorktree :one
+INSERT INTO workspace_worktrees (
+  id, workspace_id, branch, path, status, active_holder, acquired_at
+) VALUES ($1,$2,$3,$4,$5,$6,$7)
+RETURNING *;
+
+-- name: GetWorktreeByID :one
+SELECT * FROM workspace_worktrees WHERE id = $1;
+
+-- name: GetWorktreeByBranchForUpdate :one
+SELECT * FROM workspace_worktrees
+WHERE workspace_id = $1 AND branch = $2
+FOR UPDATE;
+
+-- name: ListWorktreesByWorkspace :many
+SELECT * FROM workspace_worktrees
+WHERE workspace_id = $1
+ORDER BY created_at DESC;
+
+-- name: SetWorktreeActive :one
+UPDATE workspace_worktrees
+SET status = 'active', active_holder = $2, acquired_at = now(), last_used_at = now()
+WHERE id = $1
+RETURNING *;
+
+-- name: SetWorktreeIdle :one
+UPDATE workspace_worktrees
+SET status = 'idle', active_holder = NULL, acquired_at = NULL, last_used_at = now()
+WHERE id = $1
+RETURNING *;
+
+-- name: SetWorktreePruning :one
+UPDATE workspace_worktrees
+SET status = 'pruning', last_used_at = now()
+WHERE id = $1
+RETURNING *;
+
+-- name: DeleteWorktree :exec
+DELETE FROM workspace_worktrees WHERE id = $1;