⚡ Bolt: Memoize blueprint variants to prevent N+1 network requests

[merg357]

💡 What:
Added @functools.lru_cache(maxsize=None) to the get_variants function in printify_manager.py to memoize the responses. Changed the return type from a mutable list to an immutable tuple to ensure thread safety and prevent downstream mutation bugs. Also added an entry to the .jules/bolt.md journal documenting this N+1 network bottleneck learning.

🎯 Why:
During bulk product creation, the app repeatedly calls the Printify API to fetch variant IDs for the same few blueprints. This causes an N+1 network bottleneck, slowing down execution significantly and needlessly risking API rate limit errors.

📊 Impact:
Substantially reduces the total number of network requests made during bulk operations (like create, run), making the overall application execution measurably faster. Converting the returned value to a tuple ensures safe use with lru_cache.

🔬 Measurement:
Measure the total execution time and network request count of bulk actions like python3 printify_manager.py create or run. With the cache in place, variant fetches for identical blueprint_id + provider_id pairs will be instantaneous after the first call.

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PR created automatically by Jules for task 12762622296221196672 started by @merg357

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[Copilot]

Pull request overview

Adds memoization to get_variants() in printify_manager.py to eliminate redundant Printify API calls for the same blueprint/provider pair during bulk operations, and documents the learning in .jules/bolt.md.

Changes:

• Import functools and decorate get_variants with @functools.lru_cache(maxsize=None).
• Change get_variants return type from list to tuple for hashability/immutability suitable with the cache.
• Add a journal entry describing the N+1 bottleneck and chosen remedy.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
printify_manager.py	Memoizes get_variants and returns an immutable tuple of variant IDs.
.jules/bolt.md	New journal entry documenting the N+1 fix and rationale.

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