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/bmm/workflows/bmad-quick-flow/quick-dev/steps/step-02-context-gathering.md

@@ -0,0 +1,118 @@
+---
+name: 'step-02-context-gathering'
+description: 'Quick context gathering for direct mode - identify files, patterns, dependencies'
+
+nextStepFile: './step-03-execute.md'
+---
+
+# Step 2: Context Gathering (Direct Mode)
+
+**Goal:** Quickly gather context for direct instructions - files, patterns, dependencies.
+
+**Note:** This step only runs for Mode B (direct instructions). If `{execution_mode}` is "tech-spec", this step was skipped.
+
+---
+
+## AVAILABLE STATE
+
+From step-01:
+
+- `{baseline_commit}` - Git HEAD at workflow start
+- `{execution_mode}` - Should be "direct"
+- `{project_context}` - Loaded if exists
+
+---
+
+## EXECUTION SEQUENCE
+
+### 1. Identify Files to Modify
+
+Based on user's direct instructions:
+
+- Search for relevant files using glob/grep
+- Identify the specific files that need changes
+- Note file locations and purposes
+
+### 2. Find Relevant Patterns
+
+Examine the identified files and their surroundings:
+
+- Code style and conventions used
+- Existing patterns for similar functionality
+- Import/export patterns
+- Error handling approaches
+- Test patterns (if tests exist nearby)
+
+### 3. Note Dependencies
+
+Identify:
+
+- External libraries used
+- Internal module dependencies
+- Configuration files that may need updates
+- Related files that might be affected
+
+### 4. Create Mental Plan
+
+Synthesize gathered context into:
+
+- List of tasks to complete
+- Acceptance criteria (inferred from user request)
+- Order of operations
+- Files to touch
+
+---
+
+## PRESENT PLAN
+
+Display to user:
+
+```
+**Context Gathered:**
+
+**Files to modify:**
+- {list files}
+
+**Patterns identified:**
+- {key patterns}
+
+**Plan:**
+1. {task 1}
+2. {task 2}
+...
+
+**Inferred AC:**
+- {acceptance criteria}
+
+Ready to execute? (y/n/adjust)
+```
+
+- **y:** Proceed to execution
+- **n:** Gather more context or clarify
+- **adjust:** Modify the plan based on feedback
+
+---
+
+## NEXT STEP DIRECTIVE
+
+**CRITICAL:** When user confirms ready, explicitly state:
+
+- **y:** "**NEXT:** Read fully and follow: `{project-root}/_bmad/bmm/workflows/bmad-quick-flow/quick-dev/steps/step-03-execute.md`"
+- **n/adjust:** Continue gathering context, then re-present plan
+
+---
+
+## SUCCESS METRICS
+
+- Files to modify identified
+- Relevant patterns documented
+- Dependencies noted
+- Mental plan created with tasks and AC
+- User confirmed readiness to proceed
+
+## FAILURE MODES
+
+- Executing this step when Mode A (tech-spec)
+- Proceeding without identifying files to modify
+- Not presenting plan for user confirmation
+- Missing obvious patterns in existing code