Method deleteNodesByFile

src/db/queries.ts:637–648

* Delete all nodes for a file

(filePath: string)

   * Delete all nodes for a file
   */
  deleteNodesByFile(filePath: string): void {
    if (!this.stmts.deleteNodesByFile) {
      this.stmts.deleteNodesByFile = this.db.prepare('DELETE FROM nodes WHERE file_path = ?');
    }
    // Invalidate cache for nodes in this file
    for (const [id, node] of this.nodeCache) {
      if (node.filePath === filePath) {
        this.nodeCache.delete(id);
      }
    }
    this.stmts.deleteNodesByFile.run(filePath);
  }

  // ===========================================================================
  // Name-segment vocabulary (prompt-hook graph-derived gate)