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/elegantcv-analysis.md

@@ -0,0 +1,45 @@
+
+# ElegantCV Analysis
+
+## Purpose
+
+Study premium CV aesthetics.
+
+---
+
+# Important Lessons
+
+Focus on:
+
+- Visual quality.
+- Professional layouts.
+- Typography.
+- Balance.
+
+---
+
+# Jobjakt Goal
+
+Generated CVs should feel:
+
+Premium.
+
+Modern.
+
+Professional.
+
+---
+
+# Requirements
+
+Themes should support:
+
+- ATS-safe options.
+- Creative options.
+- Professional options.
+
+---
+
+# Avoid
+
+Templates that look impressive but fail recruitment systems.