chore(agent): configure AI agents and tools

Add configuration for BMad, Claude, OpenCode, and other AI agent tools and workflows.

.claude/commands/create-pr.md

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+# Create Pull Request Command
+
+Create a new branch, commit changes, and submit a pull request.
+
+## Behavior
+- Creates a new branch based on current changes
+- Formats modified files using Biome
+- Analyzes changes and automatically splits into logical commits when appropriate
+- Each commit focuses on a single logical change or feature
+- Creates descriptive commit messages for each logical unit
+- Pushes branch to remote
+- Creates pull request with proper summary and test plan
+
+## Guidelines for Automatic Commit Splitting
+- Split commits by feature, component, or concern
+- Keep related file changes together in the same commit
+- Separate refactoring from feature additions
+- Ensure each commit can be understood independently
+- Multiple unrelated changes should be split into separate commits