chore(agent): configure AI agents and tools

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

.claude/commands/bmad-cw/tasks/character-depth-pass.md

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+# /character-depth-pass Task
+
+When this command is used, execute the following task:
+
+<!-- Powered by BMAD™ Core -->
+
+# ------------------------------------------------------------
+
+# 9. Character Depth Pass
+
+# ------------------------------------------------------------
+
+---
+
+task:
+id: character-depth-pass
+name: Character Depth Pass
+description: Enrich character profiles with backstory and arc details.
+persona_default: character-psychologist
+inputs:
+
+- character-summaries.md
+  steps:
+- For each character, add formative events, internal conflicts, arc milestones.
+  output: characters.md
+  ...