Centralize All Templates into Single Canonical Location

Per docs-doctrine Phase 2, batch templates must live in a single canonical templates/ directory in the org repo. Duplicated or scattered templates across repos must be consolidated.

Acceptance Criteria

• [ ] Inventory all template files across all repos (batch scripts, config templates, doc templates)
• [ ] Designate one templates/ directory as canonical
• [ ] Move all templates to the canonical location
• [ ] Replace scattered copies with derived references or symlinks
• [ ] Verify no duplicate template files remain outside the canonical directory