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feat: Add structured template metadata generation with OpenAI

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- Implement OpenAI batch API integration for metadata generation
- Add metadata columns to database schema (metadata_json, metadata_generated_at)
- Create MetadataGenerator service with structured output schemas
- Create BatchProcessor for handling OpenAI batch jobs
- Add --generate-metadata flag to fetch-templates script
- Update template repository with metadata management methods
- Add OpenAI configuration to environment variables
- Include comprehensive tests for metadata generation
- Use gpt-4o-mini model with 50% cost savings via batch API

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
czlonkowski
2025-09-14 20:00:39 +02:00
parent d49416fc58
commit 6e24da722b
9 changed files with 1011 additions and 13 deletions
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5
src/database/schema.sql
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@@ -42,13 +42,16 @@ CREATE TABLE IF NOT EXISTS templates (
created_at DATETIME,
updated_at DATETIME,
url TEXT,
scraped_at DATETIME DEFAULT CURRENT_TIMESTAMP
scraped_at DATETIME DEFAULT CURRENT_TIMESTAMP,
metadata_json TEXT, -- Structured metadata from OpenAI (JSON)
metadata_generated_at DATETIME -- When metadata was generated
);
-- Templates indexes
CREATE INDEX IF NOT EXISTS idx_template_nodes ON templates(nodes_used);
CREATE INDEX IF NOT EXISTS idx_template_updated ON templates(updated_at);
CREATE INDEX IF NOT EXISTS idx_template_name ON templates(name);
CREATE INDEX IF NOT EXISTS idx_template_metadata ON templates(metadata_generated_at);
-- Note: FTS5 tables are created conditionally at runtime if FTS5 is supported
-- See template-repository.ts initializeFTS5() method