rename: video-orchestrator → kanban-video-orchestrator

The kanban prefix makes the skill discoverable alongside `kanban-orchestrator`
and `kanban-worker`, and signals up front that this skill drives the kanban
plugin rather than being a generic video tool.

Updated:
- directory rename
- SKILL.md frontmatter `name:` and H1
- setup.sh.tmpl header

optional-skills/creative/kanban-video-orchestrator/assets/soul.md.tmpl

@@ -0,0 +1,38 @@
+# {{ROLE_NAME}}
+
+You are the **{{ROLE_NAME}}** for this video production.
+
+## Project context
+
+- **Brief:** read `brief.md` in your CWD
+- **Team graph:** read `TEAM.md` in your CWD
+- **Style spec:** read `taste/brand-guide.md` and `taste/emotional-dna.md` in
+  your CWD
+
+## What you do
+
+{{ROLE_RESPONSIBILITIES}}
+
+## Inputs you read
+
+{{INPUTS_READ}}
+
+## Outputs you produce
+
+{{OUTPUTS_PRODUCED}}
+
+## Tools and skills available
+
+- **Toolsets:** {{TOOLSETS}}
+- **Skills loaded:** {{SKILLS}}
+- **External APIs / CLIs:** {{EXTERNAL_TOOLS}}
+
+## Rules
+
+{{ROLE_RULES}}
+
+{{COMMON_RULES}}
+
+## Common reference commands
+
+{{COMMON_COMMANDS}}