chore: Use swc over babel for storybook's webpack5 compiler

[dougfabris]

Proposed changes (including videos or screenshots)

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Further comments

Summary by CodeRabbit

• Chores
  • Switch Storybook across the repo from a Babel-based webpack5 compiler to an SWC-based webpack5 compiler, updating Storybook addons and devDependencies for more consistent, faster Storybook builds and unified compiler behavior across packages.

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[dionisio-bot]

Looks like this PR is ready to merge! 🎉
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[changeset-bot]

⚠️ No Changeset found

Latest commit: f0bd388

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[coderabbitai]

Walkthrough

This PR replaces Storybook's webpack5 compiler addon from the Babel-based package to the SWC-based package across multiple packages, updates Storybook main config entries, removes local re-exports of the Babel preset where present, and updates devDependencies to @storybook/addon-webpack5-compiler-swc (~3.0.0).

Changes

Cohort / File(s)	Summary
apps/meteor apps/meteor/.storybook/main.ts, apps/meteor/package.json	Replaced Storybook webpack5 compiler addon from Babel to SWC; updated devDependency to @storybook/addon-webpack5-compiler-swc (~3.0.0).
ee/packages/pdf-worker ee/packages/pdf-worker/.storybook/main.ts, ee/packages/pdf-worker/package.json	Swapped Storybook webpack5 compiler addon from Babel to SWC; updated devDependency to @storybook/addon-webpack5-compiler-swc (~3.0.0).
packages/fuselage-ui-kit packages/fuselage-ui-kit/.storybook/main.ts, packages/fuselage-ui-kit/.storybook/webpackAddon.ts, packages/fuselage-ui-kit/package.json	Replaced local ./webpackAddon entry with SWC compiler addon; removed export * from '@storybook/addon-webpack5-compiler-babel/preset'; updated devDependency to SWC.
packages/gazzodown packages/gazzodown/.storybook/main.ts, packages/gazzodown/.storybook/webpackAddon.ts, packages/gazzodown/package.json	Replaced local webpackAddon entry with SWC compiler addon; removed Babel preset re-export; updated devDependency to SWC (~3.0.0).
packages/livechat packages/livechat/.storybook/main.ts, packages/livechat/package.json	Replaced Babel webpack5 compiler addon with SWC in Storybook config and devDependencies.
packages/storybook-config packages/storybook-config/src/main.ts, packages/storybook-config/package.json	Swapped Storybook webpack5 compiler addon path to SWC and updated devDependency to @storybook/addon-webpack5-compiler-swc (~3.0.0).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Repeated, homogeneous dependency/configuration replacements across packages.
• Files to spot-check:
  • .storybook/main.ts entries for correct addon paths.
  • webpackAddon.ts files for removal of Babel preset re-exports.
  • package.json devDependency versions and consistency.

Possibly related PRs

• chore(ui-composer): Review build configuration #37599 — similar swap to SWC and removal of Babel preset re-exports.
• chore(ui-video-conf): Review build configuration #37586 — related PR replacing the Storybook Babel compiler addon with SWC across packages.
• chore(web-ui-registration): Review build configuration #37584 — similar change switching Storybook webpack5 compiler from Babel to SWC in another package.

Suggested labels

stat: ready to merge

Suggested reviewers

• ggazzo

Poem

🐰 From Babel's slow hop to SWC's quick leap,
Storybook wakes early, no time for sleep.
I nibble the changes with floppy delight,
Faster stories now race through the night! ✨

Pre-merge checks and finishing touches

✅ 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 accurately summarizes the main change: replacing Babel with SWC for Storybook's webpack5 compiler across multiple packages.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/use-webpack5-compiler-swc

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📥 Commits

Reviewing files that changed from the base of the PR and between cdf9504 and 9bc5246.

⛔ Files ignored due to path filters (1)

• yarn.lock is excluded by !**/yarn.lock, !**/*.lock

📒 Files selected for processing (4)

• apps/meteor/package.json (1 hunks)
• packages/fuselage-ui-kit/package.json (1 hunks)
• packages/livechat/package.json (1 hunks)
• packages/storybook-config/package.json (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (3)

• apps/meteor/package.json
• packages/livechat/package.json
• packages/storybook-config/package.json

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🔇 Additional comments (1)

packages/fuselage-ui-kit/package.json (1)

70-70: Addon is compatible and properly configured; consider cleaning up unused Babel dependencies.

The SWC compiler addon @storybook/addon-webpack5-compiler-swc@3.0.0 is compatible with Storybook 8.6.14, and the .storybook/main.ts has already been properly updated to register it. However, the Babel dependencies (@babel/core, @babel/preset-env, @babel/preset-react, @babel/preset-typescript, babel-loader, and .babelrc.json) are still present in the package but unused in the source code. Since Storybook 8's webpack5 builder uses SWC by default, these can be safely removed.

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[github-actions]

📦 Docker Image Size Report

📈 Changes

Service	Current	Baseline	Change	Percent
sum of all images	1.2GiB	1.2GiB	+12MiB
rocketchat	359MiB	348MiB	+12MiB
omnichannel-transcript-service	132MiB	132MiB	-1.4KiB
queue-worker-service	132MiB	132MiB	-741B
ddp-streamer-service	126MiB	126MiB	-512B
account-service	113MiB	113MiB	-1.5KiB
stream-hub-service	111MiB	111MiB	-1.5KiB
authorization-service	111MiB	111MiB	-1.4KiB
presence-service	111MiB	111MiB	-1.7KiB

📊 Historical Trend

---
config:
  theme: "dark"
  xyChart:
    width: 900
    height: 400
---
xychart
  title "Image Size Evolution by Service (Last 30 Days + This PR)"
  x-axis ["11/15 22:28", "11/16 01:28", "11/17 23:50", "11/18 22:53", "11/19 23:02", "11/21 16:49", "11/24 17:34", "11/27 22:32", "11/28 19:05", "12/01 23:01", "12/02 21:57", "12/03 21:00", "12/04 18:17", "12/05 18:59", "12/05 19:35 (PR)"]
  y-axis "Size (GB)" 0 --> 0.5
  line "account-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11]
  line "authorization-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11]
  line "ddp-streamer-service" [0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12, 0.12]
  line "omnichannel-transcript-service" [0.14, 0.14, 0.14, 0.14, 0.14, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13]
  line "presence-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11]
  line "queue-worker-service" [0.14, 0.14, 0.14, 0.14, 0.14, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13, 0.13]
  line "rocketchat" [0.36, 0.36, 0.35, 0.35, 0.35, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.34, 0.35]
  line "stream-hub-service" [0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11, 0.11]

Loading

Statistics (last 14 days):

• 📊 Average: 1.5GiB
• ⬇️ Minimum: 1.2GiB
• ⬆️ Maximum: 1.6GiB
• 🎯 Current PR: 1.2GiB

ℹ️ About this report

This report compares Docker image sizes from this build against the develop baseline.

• Tag: pr-37696
• Baseline: develop
• Timestamp: 2025-12-05 19:35:35 UTC
• Historical data points: 14

---

Updated: Fri, 05 Dec 2025 19:35:36 GMT

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.78%. Comparing base (48953d2) to head (f0bd388).
⚠️ Report is 7 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #37696      +/-   ##
===========================================
- Coverage    67.79%   67.78%   -0.01%     
===========================================
  Files         3449     3449              
  Lines       114030   114030              
  Branches     20963    20963              
===========================================
- Hits         77305    77296       -9     
- Misses       34606    34616      +10     
+ Partials      2119     2118       -1     

Flag	Coverage Δ
e2e	57.24% <ø> (-0.03%)	⬇️
e2e-api	42.15% <ø> (ø)

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