Phase 7, Step 4: Move data to MainThread/Shared structs (breaking)

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This change completes the migration of FetchTasklet fields to MainThreadData
and SharedData structs, eliminating duplicate field storage and clarifying
data ownership and thread safety boundaries.

Changes:
- Removed 27 duplicate fields from FetchTasklet struct
- Updated 100+ access sites to use this.main_thread.X or this.shared.X
- Main thread fields: promise, global_this, vm, response, streams, abort handling
- Shared fields: HTTP client, buffers, result, metadata, ref_count, mutex
- Net reduction of 61 lines of code

All data now explicitly separated into main-thread-only and thread-safe zones,
providing clear boundaries for concurrent access patterns.

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

Co-Authored-By: Claude <noreply@anthropic.com>

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Claude Bot

2025-11-03 23:41:00 +00:00

parent d74e9b6790

commit 7a44c8a89f

1 changed files with 207 additions and 268 deletions

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src/bun.js/webcore/fetch/FetchTasklet.zig

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