refactor: split debug symbols workflow modules

[thymikee]

Summary

Refactors crash symbolication internals into focused modules for artifact parsing/writing, dSYM UUID discovery and matching, symbolication command execution, compact report shaping, and shared workflow types/utilities while preserving the existing debug symbols command surface and output/artifact contract.

Closes #784

Touched files: 7.

Validation

• pnpm format
• pnpm exec vitest run src/__tests__/debug-symbols.test.ts src/__tests__/cli-debug-symbols.test.ts (15 tests passed)
• pnpm check:quick
• pnpm build
• Live smoke from an isolated review worktree using an existing real simulator crash artifact and matching dSYM:
  • command: node bin/agent-device.mjs debug symbols --artifact /Users/thymikee/Library/Logs/DiagnosticReports/CrashSymbolProbe-2026-06-11-131543.ips --dsym /private/tmp/agent-device-crash-probe/CrashSymbolProbe.app.dSYM --out /private/tmp/agent-device-pr-787-symbolicated.ips
  • result: compact output, Symbolicated 3 frames, first actionable frame CrashSymbolProbeTrigger (main.m:8), matched UUID 76C74FACC6203472951FEBB0DC7833B5 arm64, full artifact written to /private/tmp/agent-device-pr-787-symbolicated.ips

[github-actions]

Size Report

Metric	Base	Current	Diff
JS raw	1.3 MB	1.3 MB	+555 B
JS gzip	409.5 kB	409.8 kB	+319 B
npm tarball	542.6 kB	543.2 kB	+630 B
npm unpacked	1.8 MB	1.8 MB	+1.8 kB

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	25.9 ms	26.0 ms	+0.1 ms
CLI --help	51.5 ms	52.0 ms	+0.5 ms

Top changed chunks:

Chunk	Raw diff	Gzip diff
dist/src/6133.js	+134.8 kB	+40.3 kB
dist/src/9542.js	+46 B	+79 B
dist/src/cli.js	+56 B	+21 B
dist/src/cli-output.js	+31 B	+19 B
dist/src/android.js	0 B	-4 B

[thymikee]

I reran the live crash-symbolication smoke from an isolated review worktree because the PR body currently says this was blocked.

Validation passed on the existing real simulator crash artifact and matching dSYM:

• branch: codex/debug-symbols-workflow-modules at f088b32e7
• build: pnpm build
• focused tests: pnpm exec vitest run src/__tests__/debug-symbols.test.ts src/__tests__/cli-debug-symbols.test.ts -> 2 files, 15 tests passed
• command: node bin/agent-device.mjs debug symbols --artifact /Users/thymikee/Library/Logs/DiagnosticReports/CrashSymbolProbe-2026-06-11-131543.ips --dsym /private/tmp/agent-device-crash-probe/CrashSymbolProbe.app.dSYM --out /private/tmp/agent-device-pr-787-symbolicated.ips
• result: compact output, Symbolicated 3 frames, first actionable frame CrashSymbolProbeTrigger (main.m:8), matched UUID 76C74FACC6203472951FEBB0DC7833B5 arm64, artifact written to /private/tmp/agent-device-pr-787-symbolicated.ips

Please update the PR body to replace the blocked-live-smoke note with this evidence before merge. I am continuing the code review separately.

[github-actions]

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2026-06-12 12:45 UTC