feat(graveyard): add 5 famous casualties to the hall of shame (#20)

Adds entries to KNOWN_REPO_CAUSES (src/lib/scoring.ts) and
HALL_OF_SHAME (src/components/Leaderboard.tsx) for five
factually-abandoned repos, matching the existing dry deadpan tone:

- facebook/draft-js (archived Feb 2023, replaced by Lexical)
- LightTable/LightTable (abandoned 2022, Kickstarter IDE)
- keystonejs/keystone-classic (archived Dec 2023, superseded by Keystone 6)
- facebookarchive/stetho (archived 2024, native DevTools Android took over)
- facebookarchive/react-native-fbsdk (archived 2021, replaced by -fbsdk-next)

All five repos are confirmed archived on GitHub. Causes are under
~65 characters. Test + lint pass.

Refs #9

Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>

Author: mvanhorn

src/components/Leaderboard.tsx

@@ -33,6 +33,12 @@ const HALL_OF_SHAME: LeaderboardEntry[] = [
   { fullName: 'marionettejs/backbone.marionette', cause: 'Backbone died. So did everything built on Backbone.', score: 8, deathDate: 'Mar 2020', lastWords: 'I was Backbone but organized. Backbone wasn\'t organized. Or alive.' },
   { fullName: 'request/request',        cause: 'fetch() shipped natively and deprecated an entire generation', score: 9, deathDate: 'Feb 2020', lastWords: 'I was downloaded 30 million times a week. Then fetch happened.' },
   { fullName: 'nicolo-ribaudo/jest-light-runner', cause: 'Vitest arrived and made everyone feel bad about Jest', score: 6, deathDate: 'Jan 2023', lastWords: 'I was faster Jest. Vitest was even faster. Also had a UI.' },
+
+  { fullName: 'facebook/draft-js',            cause: 'Meta shipped Lexical and forgot which editor anyone was using', score: 9, deathDate: 'Feb 2023', lastWords: 'I was the React rich-text answer. React found a different answer.' },
+  { fullName: 'LightTable/LightTable',        cause: 'The IDE of the future stayed in the future permanently',        score: 8, deathDate: 'Jun 2022', lastWords: 'Kickstarted $316k. Shipped an alpha. Never shipped a 1.0.' },
+  { fullName: 'keystonejs/keystone-classic',   cause: 'Keystone 6 shipped and nobody looked back at the old one',      score: 7, deathDate: 'Dec 2023', lastWords: 'The rewrite kept the name. I kept the issues tab.' },
+  { fullName: 'facebookarchive/stetho',        cause: 'Chrome DevTools got native Android debugging and stopped caring', score: 7, deathDate: 'Oct 2024', lastWords: 'I bridged Chrome DevTools to Android. Chrome stopped wanting a bridge.' },
+  { fullName: 'facebookarchive/react-native-fbsdk', cause: 'Replaced by a package with -next in the name',             score: 7, deathDate: 'Mar 2021', lastWords: 'The successor is react-native-fbsdk-next. There is no going forward from here.' },
 ]
 
 const FONT = `var(--font-dm), -apple-system, sans-serif`

src/lib/scoring.ts

@@ -11,6 +11,11 @@ const KNOWN_REPO_CAUSES: Record<string, string> = {
   'angular/angular.js': 'AngularJS hit official end-of-life when modern Angular replaced it',
   'request/request': 'The maintainers deprecated it as native fetch and modern clients took over',
   'ariya/phantomjs': 'Chrome went headless and erased the reason this existed',
+  'facebook/draft-js': 'Meta shipped Lexical and forgot which editor anyone was using',
+  'lighttable/lighttable': 'The IDE of the future stayed in the future permanently',
+  'keystonejs/keystone-classic': 'Keystone 6 shipped and nobody looked back at the old one',
+  'facebookarchive/stetho': 'Chrome DevTools got native Android debugging and stopped caring',
+  'facebookarchive/react-native-fbsdk': 'Replaced by a package with -next in the name',
 }
 
 export function computeDeathIndex(repo: RepoData): number {