feat(resume): complete Epic 4 - Resume Content Strategy and Guidelines

- Update resume data with comprehensive professional summary and optimized work experience highlights
- Add resume content tech-spec and strategy documentation for 2025 best practices
- Create resume guidelines reference document for content consistency
- Enhance PDF composable with openPdf preview function alongside downloadPdf
- Expand CSS banner hiding rules to block certificates.dev promotional content
- Add research documentation on resume best practices and ATS optimization
- Update i18n translations for resume content in English and Persian
- Include sample Ali Arghyani resume PDF template in design assets
- Refactor resume.en.ts with improved professional positioning and achievement metrics
- Update API route documentation for PDF generation story artifacts
- Establish foundation for Epic 4 sprint planning with tech specifications

i18n/locales/en.json

@@ -75,7 +75,9 @@
     }
   },
   "hero": {
-    "currently": "Currently at"
+    "currently": "Currently at",
+    "viewResume": "View Resume",
+    "downloadPdf": "Download PDF"
   },
   "toasts": {
     "emailCopied": {