Add draft exercise entry parsing scaffolding

[forketyfork]

Summary

• add a draft exercise entry parser that captures names, weights, and set breakdowns
• surface a configurable exercise tag in settings alongside documentation updates
• add unit coverage for the new parser behavior

Testing

• yarn build

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Codex Task

[Copilot]

Pull request overview

This PR introduces draft exercise entry parsing scaffolding for structured workout logging. It adds a new parser to capture exercise names, weights, and set breakdowns from workout entries, and integrates calorie calculation based on per-rep metadata from linked exercise notes.

Key changes:

• Added ExerciseEntryParser for parsing workout entries with format #workout [[Exercise]] 40kg 15-15-15
• Introduced ExerciseMetadataService to resolve calories-per-rep from exercise note frontmatter
• Integrated exercise parsing into nutrition calculations, subtracting workout calories from totals

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/ExerciseEntryParser.ts	New parser for structured exercise entries with name, weight, and sets
src/ExerciseMetadataService.ts	Service to resolve per-rep calorie metadata from exercise notes
src/NutritionCalculator.ts	Integrated exercise entry parsing and calorie conversion into nutrition totals
src/__tests__/ExerciseEntryParser.test.ts	Test coverage for exercise entry parser functionality
src/__tests__/NutritionCalculator.test.ts	Test coverage for workout calorie calculation from set-based entries
src/FoodTrackerPlugin.ts	Wired up ExerciseMetadataService initialization and cache clearing
src/StatsService.ts	Added ExerciseMetadataService dependency and passed to calculation params
src/FrontmatterTotalsService.ts	Added ExerciseMetadataService dependency for frontmatter total calculations
src/NutritionTotal.ts	Added optional getExerciseCaloriesPerRep parameter
src/SettingsService.ts	Reordered settings properties (no functional change)
src/__tests__/StatsService.test.ts	Updated test mocks to include exerciseMetadataService
README.md	Added documentation for structured exercise notes feature

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