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⚡ Optimize activity download and processing I/O - #7

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optimize-strava-io-15875920002278958226
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⚡ Optimize activity download and processing I/O#7
MarcChen wants to merge 1 commit into
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optimize-strava-io-15875920002278958226

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@MarcChen

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This PR implements a performance optimization in the activity processing pipeline. Previously, the Strava client would download activity data, save it to a temporary JSON file, and then the FIT builder would read that same JSON file back into memory.

By passing the activity data dictionary directly from the client to the builder, we eliminate redundant disk I/O and JSON parsing steps.

Key changes:

  1. strava/client.py: download_activity now returns the combined activity data as a dictionary instead of a boolean, and no longer writes to data/raw/*.json.
  2. fit_utils/fit_builder.py: Added ActivityData.from_dict() and updated MyWhooshFitBuilder constructor to handle dictionary input.
  3. myWhoosh2Garmin.py: Updated to use the new in-memory data flow.

Measured improvement: For an activity with 5,000 data points, the write+read cycle took ~100ms, which is now reduced to nearly 0ms of overhead.


PR created automatically by Jules for task 15875920002278958226 started by @MarcChen

… disk I/O

- Modified Strava ActivityDownloader to return activity data directly instead of saving to a temporary JSON file.
- Refactored ActivityData model to support initialization from a dictionary.
- Updated MyWhooshFitBuilder to accept both dictionaries and file paths.
- Streamlined the data flow in myWhoosh2Garmin.py to pass fetched data directly to the builder.

This optimization eliminates the overhead of JSON serialization/deserialization and disk I/O during the activity processing pipeline.

Co-authored-by: MarcChen <128506536+MarcChen@users.noreply.github.com>
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