Rename jira-setup and slack-setup to jira and slack in documentation

[Copilot]

Simplifies the naming convention for example memory files and bootstrap scripts in the README.

Changes

• jira-setup.md → jira.md
• jira-setup-bootstrap → jira-bootstrap
• slack-setup.md → slack.md
• slack-setup-bootstrap → slack-bootstrap

Example usage now reads:

# Create memory file
cat > .prompts/memories/jira.md << 'EOF'
---
tools: jira
---
# Jira Integration
...
EOF

# Create bootstrap script
cat > .prompts/memories/jira-bootstrap << 'EOF'
#!/bin/bash
...
EOF

chmod +x .prompts/memories/jira-bootstrap

Original prompt

Change the name from jira-setup to just jira, (slack too).

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