[refactor] Replace manual semantic version utilities/functions with semver package (#5653)

## Summary
- Replace custom `compareVersions()` with `semver.compare()`
- Replace custom `isSemVer()` with `semver.valid()`  
- Remove deprecated version comparison functions from `formatUtil.ts`
- Update all version comparison logic across components and stores
- Fix tests to use semver mocking instead of formatUtil mocking

## Benefits
- **Industry standard**: Uses well-maintained, battle-tested `semver`
package
- **Better reliability**: Handles edge cases more robustly than custom
implementation
- **Consistent behavior**: All version comparisons now use the same
underlying logic
- **Type safety**: Better TypeScript support with proper semver types


Fixes #4787

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-5653-refactor-Replace-manual-semantic-version-utilities-functions-with-semver-package-2736d73d365081fb8498ee11cbcc10e2)
by [Unito](https://www.unito.io)

---------

Co-authored-by: DrJKL <DrJKL@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>

src/utils/formatUtil.ts

@@ -364,39 +364,6 @@ export const downloadUrlToHfRepoUrl = (url: string): string => {
   }
 }
 
-export const isSemVer = (
-  version: string
-): version is `${number}.${number}.${number}` => {
-  const regex = /^\d+\.\d+\.\d+$/
-  return regex.test(version)
-}
-
-const normalizeVersion = (version: string) =>
-  version
-    .split(/[+.-]/)
-    .map(Number)
-    .filter((part) => !Number.isNaN(part))
-
-export function compareVersions(
-  versionA: string | undefined,
-  versionB: string | undefined
-): number {
-  versionA ??= '0.0.0'
-  versionB ??= '0.0.0'
-
-  const aParts = normalizeVersion(versionA)
-  const bParts = normalizeVersion(versionB)
-
-  for (let i = 0; i < Math.max(aParts.length, bParts.length); i++) {
-    const aPart = aParts[i] ?? 0
-    const bPart = bParts[i] ?? 0
-    if (aPart < bPart) return -1
-    if (aPart > bPart) return 1
-  }
-
-  return 0
-}
-
 /**
  * Converts Metronome's integer amount back to a formatted currency string.
  * For USD, converts from cents to dollars.

src/utils/versionUtil.ts

@@ -1,4 +1,4 @@
-import * as semver from 'semver'
+import { clean, satisfies } from 'semver'
 
 import type {
   ConflictDetail,
@@ -11,7 +11,7 @@ import type {
  * @returns Cleaned version string or original if cleaning fails
  */
 export function cleanVersion(version: string): string {
-  return semver.clean(version) || version
+  return clean(version) || version
 }
 
 /**
@@ -23,7 +23,7 @@ export function cleanVersion(version: string): string {
 export function satisfiesVersion(version: string, range: string): boolean {
   try {
     const cleanedVersion = cleanVersion(version)
-    return semver.satisfies(cleanedVersion, range)
+    return satisfies(cleanedVersion, range)
   } catch {
     return false
   }