8.99.0

• 🐝 refactor: consolidate asset cache logic bbadfaa @ArnaudLigny
• 🐝 refactor: use single Cache instance in Asset d6d8d0a @ArnaudLigny
• 🐝 refactor: remove ReturnTypeWillChange attributes d57e3a9 @ArnaudLigny
• 🐝 refactor: rebuild missing asset cache file 1718d9e @ArnaudLigny
• 📈 perf: Build translations index (#2395) b644559 @ArnaudLigny
• ⛑ test: add Collection tests; bump scripts cbe5a71 @ArnaudLigny
• 📄 Refactor release section and update sponsor links 77f872c @ArnaudLigny
• 📄 Add Cecil review agent, PHP rules & PR workflow f6800fd @ArnaudLigny
• 📄 Set review agent to strict mode and expand checks 6473689 @ArnaudLigny
• 📄 Enhance PR response skill template 0f2110c @ArnaudLigny
• 💄 chore(deps-dev): bump phpstan/phpstan from 2.2.0 to 2.2.1 1a87151 @dependabot-bot
• 💄 chore(deps-dev): bump friendsofphp/php-cs-fixer from 3.95.2 to 3.95.3 0ccbe97 @dependabot-bot
• 💄 chore: update deps 2ca01f8 @ArnaudLigny

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• Documentation: https://cecil.app/documentation/
• Download: https://cecil.app/download/
• Update: https://cecil.app/download/#update