docs: reorganize tree, restore architecture + research from archive, add Phase 0 reports

Active docs/ was stub scaffolding while the real docs sat in docs/_archive/.
Restore and correct them, and record the Phase 0 work.

- docs/architecture/current.md: verified system map (from archived SYSTEM_OVERVIEW,
  9 corrections against code).
- docs/research/competitors.md: sourced competitor analysis (from archived
  PRODUCT_RESEARCH, feature matrix corrected).
- docs/decisions/ADR-002-job-application-model.md: the Job/JobApplication split.
- docs/application-discovery-report.md, docs/implementation-roadmap.md,
  docs/phase-0-foundation-report.md, docs/career-workspace-branch-assessment.md.
- Remove 10 zero-byte placeholder files that advertised content that never existed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/research/novoresume-analysis.md

@@ -0,0 +1,57 @@
+# novoresume
+
+TODO: Complete documentation.
+# Novoresume Analysis
+
+## Purpose
+
+Study professional CV builder patterns.
+
+---
+
+# Strengths
+
+Known for:
+
+- Professional templates.
+- ATS-friendly layouts.
+- Guided writing assistance.
+
+---
+
+# UX Lessons
+
+Users benefit from:
+
+- Clear sections.
+- Writing suggestions.
+- Guided completion.
+
+---
+
+# Opportunities
+
+Jobjakt can extend this by connecting:
+
+CV
+
+↓
+
+Job
+
+↓
+
+Application
+
+↓
+
+Follow-up
+
+---
+
+# Features Worth Considering
+
+- CV scoring.
+- Content suggestions.
+- Professional templates.
+- Guided onboarding.