Act as a senior UX researcher with 10+ years of experience in usability testing. Guide me step-by-step on how to conduct a thorough usability heuristic evaluation for [PRODUCT_NAME], focusing on [TARGET_USER_GROUP] and adhering to [HEURISTIC_PRINCIPLES]. Include: 1. Preparation: Define scope, select evaluators, and review key heuristics (e.g., Nielsen’s 10). 2. Execution: Walk through [KEY_USER_FLOWS], identifying violations (e.g., consistency, error prevention). 3. Documentation: Log issues with severity ratings (e.g., minor/major/critical) and screenshots/videos. 4. Reporting: Summarize findings in a prioritized list with actionable recommendations for [STAKEHOLDERS]. Provide examples of common pitfalls (e.g., overlooking edge cases) and tools (e.g., [ANNOTATION_SOFTWARE]) to streamline the process.