refactor: extract shared LengthStrategy type

[Shinigami92]

related to #1443

Preview:

• https://deploy-preview-3940.fakerjs.dev/api/lorem.html#word

[netlify]

✅ Deploy Preview for fakerjs ready!

Name	Link
🔨 Latest commit	f476ad6
🔍 Latest deploy log	https://app.netlify.com/projects/fakerjs/deploys/6a4faceff338b80009c33028
😎 Deploy Preview	https://deploy-preview-3940.fakerjs.dev
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
🤖 Make changes	Run an agent on this branch

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.85%. Comparing base (c2cd91d) to head (f476ad6).

Additional details and impacted files

@@           Coverage Diff           @@
##             next    #3940   +/-   ##
=======================================
  Coverage   98.84%   98.85%           
=======================================
  Files         923      924    +1     
  Lines        3216     3222    +6     
  Branches      583      566   -17     
=======================================
+ Hits         3179     3185    +6     
  Misses         33       33           
  Partials        4        4           

Files with missing lines	Coverage Δ
src/modules/lorem/module.ts	100.00% <ø> (ø)
src/modules/word/filter-word-list-by-length.ts	100.00% <ø> (ø)
src/modules/word/module.ts	96.00% <ø> (ø)
src/utils/types.ts	100.00% <100.00%> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Shinigami92]

I will add the docs here when #3939 got merged, to not fall into to many merge conflicts

[ST-DDT]

I will add the docs here when #3939 got merged, to not fall into to many merge conflicts

I have added a preview link for ease of verifcation.
AFAICT this PR does not need a docs upgrade, since the union type is already covered.

[xDivisionByZerox]

We would loose the information describing each strategy itself with this PR:

Before	After

[Shinigami92]

We would loose the information describing each strategy itself with this PR:

Before After

That is a blocker for me 🙁
I can throw Claude on this again in next few days

[ST-DDT]

Should we add a Types page?

[Shinigami92]

Should we add a Types page?

If so, it needs clickable links from the method docs. But then you might loose the context / back history and get lost. How about hover tooltips? But these might introduce problems with mobile device docs. 🤔 Do you have further ideas?

[ST-DDT]

Use the shadow type system and add the description as hoverable text.
Aka use the detected types to do actual work.