feat: initial commit — BMAD tooling, Claude memories, firmware scaffold

Adds the complete project foundation:
- BMAD BMM workflow tooling (_bmad/)
- Claude slash commands, skills, and project memories (.claude/)
- ESP32 firmware scaffold (PlatformIO + Waveshare e-ink driver)
- .gitignore excluding _bmad-output/ and .pio/ build artifacts

Planning artifacts (PRD, architecture, epics) are intentionally not
tracked — they live in _bmad-output/ per project convention.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

_bmad/tea/workflows/testarch/bmad-teach-me-testing/templates/session-notes-template.md

@@ -0,0 +1,83 @@
+---
+session_id: { { session_id } }
+session_name: { { session_name } }
+user: { { user_name } }
+role: { { role } }
+completed_date: { { completed_date } }
+score: { { score } }
+duration: { { duration } }
+---
+
+# {{session_name}} - Session Notes
+
+**Learner:** {{user_name}} ({{role}})
+**Completed:** {{completed_date}}
+**Score:** {{score}}/100
+**Duration:** {{duration}}
+
+---
+
+## Session Objectives
+
+{{session_objectives}}
+
+---
+
+## Key Concepts Covered
+
+{{key_concepts}}
+
+---
+
+## TEA Resources Referenced
+
+### Documentation
+
+{{docs_referenced}}
+
+### Knowledge Fragments
+
+{{knowledge_fragments_referenced}}
+
+### Online Resources
+
+{{online_resources}}
+
+---
+
+## Quiz Results
+
+**Score:** {{score}}/100
+
+### Questions & Answers
+
+{{quiz_results}}
+
+---
+
+## Practical Examples
+
+{{practical_examples}}
+
+---
+
+## Key Takeaways
+
+{{key_takeaways}}
+
+---
+
+## Next Recommended Session
+
+{{next_recommended}}
+
+---
+
+## Additional Notes
+
+{{additional_notes}}
+
+---
+
+**Generated by:** TEA Academy - Teach Me Testing Workflow
+**Session Path:** Session {{session_number}} of 7