feat: Transform 03-Characters into comprehensive Story Bible

- Renamed 03-Characters to 03-Story-Bible with expanded structure
- Added enhanced character templates with YAML frontmatter for metadata
- Created new sections: Locations, Lore, Objects, Relationships, Timeline, Themes
- Added templates for: regions, cities, buildings, historical events, factions
- Added templates for: artifacts, weapons, character relationships
- Added world rules document for magic/technology/society tracking
- Added CONSISTENCY.md for continuity tracking
- Added comprehensive README with usage guide
- Added index files for each section with cross-linking
- Implemented wiki-link syntax [[file]] for cross-references
- Added Mermaid diagram support for relationship maps and timelines
- Tagging system for filtering and organization

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

templates/snowflake/{{ cookiecutter.project_name }}/03-Story-Bible/01-Characters/_index.md

@@ -0,0 +1,60 @@
+---
+title: Characters Index
+type: index
+---
+
+# Characters Index
+
+*All characters in the story, organized by role and status*
+
+## By Role
+
+### Main Characters
+- [[01_protagonist|Protagonist]] - **Type:** Protagonist | **Status:** Active
+- [[02_antagonist|Antagonist]] - **Type:** Antagonist | **Status:** Active
+
+### Supporting Characters
+*No supporting characters yet*
+
+### Minor Characters
+*No minor characters yet*
+
+---
+
+## By Status
+
+### Active Characters
+- [[01_protagonist|Protagonist]]
+- [[02_antagonist|Antagonist]]
+
+### Deceased Characters
+*None yet*
+
+### Retired Characters
+*None yet*
+
+---
+
+## By Tag
+
+### #protagonist
+- [[01_protagonist|Protagonist]]
+
+### #antagonist  
+- [[02_antagonist|Antagonist]]
+
+### #main
+- [[01_protagonist|Protagonist]]
+- [[02_antagonist|Antagonist]]
+
+---
+
+## Quick Links
+- [[Character Grid|character_grid]] - Quick reference table
+- [[Add New Character|01_character_template]] - Template for new characters
+
+## Statistics
+- **Total Characters:** 2
+- **Main:** 2
+- **Supporting:** 0
+- **Minor:** 0