fix: unrug Railway CI - copy patches dir and add .railwayignore

[0xApotheosis]

Description

Fix Railway CI deployments for public-api and swap-widget services.

Two issues were causing failures:

1. pnpm install ENOENT — pnpm reads patch files from patches/ during install (even with --ignore-scripts), but the patches directory wasn't copied into the Docker build context before pnpm install
2. "Failed to snapshot repository" — Railway's snapshot phase was pulling ~74MB of tracked files. A .railwayignore reduces this by excluding files no Dockerfile build needs

Changes

• packages/public-api/Dockerfile — Added COPY patches/ ./patches/ before pnpm install (done in prior commit)
• packages/swap-widget/Dockerfile — Same fix (same bug existed here too)
• .railwayignore (new) — Excludes src/, test dirs, images, dev tooling, docs, and test files. Verified safe for all 3 Railway services (public-api, swap-widget, unchained). Critical paths like patches/, packages/, pnpm-lock.yaml, tsconfig*.json, and public/generated/generatedAssetData.json are NOT excluded.

Issue (if applicable)

N/A — Railway deploy failures since March 3rd caused by pnpm migration

Risk

Low. Changes only affect Docker build context and Railway snapshot phase. No runtime behavior changes. The public-api Dockerfile fix was already verified working in production (deployment 120427a6).

No protocols, transaction types, wallets or contract interactions are affected.

Testing

Engineering

1. Merge to develop and verify Railway deployments succeed for public-api, swap-widget, and unchained
2. Verify pnpm install step no longer fails with ENOENT for patch files
3. Verify Railway snapshot completes without "Failed to snapshot repository" errors

Operations

• 🏁 Infrastructure-only change, no user-facing impact. No operations testing needed.

Screenshots (if applicable)

N/A

Summary by CodeRabbit

Release Notes

• Chores
  • Optimized build configuration to reduce repository snapshot size for faster deployments
  • Improved Docker build process to properly support patched dependencies during package installation

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 49508c30-16d9-442f-a8ac-b3d7d3e42df9

📥 Commits

Reviewing files that changed from the base of the PR and between 443799e and 81db455.

📒 Files selected for processing (2)

• .railwayignore
• packages/swap-widget/Dockerfile

🚧 Files skipped from review as they are similar to previous changes (1)

• .railwayignore

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📝 Walkthrough

Walkthrough

Adds a Railway snapshot ignore file to exclude non-essential files from snapshots and updates two Dockerfiles to copy a patches/ directory into the builder stage so pnpm patched dependencies are available during container builds.

Changes

Cohort / File(s)	Summary
Railway Configuration .railwayignore	New Railway snapshot ignore listing patterns to exclude frontend sources, Cypress/e2e tests, generated assets, images/static files, IDE/dev files, Yarn state, general docs and tests; preserves Markdown under packages/public-api and packages/swap-widget.
Docker Build Updates packages/public-api/Dockerfile, packages/swap-widget/Dockerfile	Added COPY patches/ ./patches/ in the builder stage with a comment: ensures patches/ is available for pnpm to apply patched dependencies referenced in the lockfile. No other build logic changed.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐇 I nibble at patches, neat and small,
I hide the crumbs the snapshots stall,
Docker hums with all in place,
Lightweight builds, a hopping pace,
Cheers from a rabbit — tidy space!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely identifies the main changes: fixing Railway CI by copying patches directory and adding .railwayignore configuration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/public-api-railway-deploy

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[0xApotheosis]

Merging, can't fully test until in develop, but a commit and revert showed this as working on develop: