refactor: rename command files for namespace consistency

BREAKING CHANGE: All generic command names now prefixed with plugin namespace.
See CHANGELOG.md v7.0.0 for complete rename map.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/pr-review/commands/pr-setup.md

@@ -0,0 +1,45 @@
+---
+description: Interactive setup wizard for pr-review plugin
+---
+
+# PR Review Setup Wizard
+
+## Visual Output
+
+Display header: `PR-REVIEW - Setup Wizard`
+
+## Skills to Load
+
+- skills/setup-workflow.md
+- skills/mcp-tools-reference.md
+- skills/output-formats.md
+
+## Important Context
+
+- Uses Bash, Read, Write, AskUserQuestion - NOT MCP tools
+- MCP tools won't work until after setup + session restart
+- Shares Gitea MCP server with projman plugin
+
+## Workflow
+
+### Phase 1: Check Existing Setup
+
+Check `~/.config/claude/gitea.env`. If valid, skip to Phase 3.
+
+### Phase 2: System Setup (if needed)
+
+Execute `skills/setup-workflow.md`: verify Python, create gitea.env, prompt for token
+
+### Phase 3: Project Configuration
+
+Execute `skills/setup-workflow.md`: auto-detect org/repo, validate via API, create .env
+
+### Phase 4: Validation
+
+Test API connection, display completion summary, remind to restart session
+
+## Available Commands After Setup
+
+- `/pr-review <number>` - Full multi-agent review
+- `/pr-summary <number>` - Quick summary
+- `/pr-findings <number>` - List findings