feat: profile photo upload, PDF resume generation, AI auto-apply, schema fixes
- Profile photo upload: POST /api/profile/photo for all roles, stores via B2 storage
- PDF resume: auto-generated from job seeker portfolio on every profile save (printpdf)
- Company applications: enriched with applicant name, avatar, headline, skills, education
- AI auto-apply cron: rewrote run_auto_apply with correct schema (job_seeker_profiles,
cover_note, ai_auto_apply_settings, ai_auto_apply_logs, credit deduction)
- Schema fix: job_seeker_profiles table name (was incorrectly 'job_seekers' in two places)
- Migration: add resume_url column to job_seeker_profiles
- Migrations: PayU rename, tracecoin hardening, lead reserve linkage, invoice/wallet crates
- PayU integration: ai_credits, packages, admin payment handlers
- Wallet and invoice crates added
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>