docs(10): complete help-text-phase-2 phase

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

Author: dbachelder

.planning/phases/10-help-text-phase-2/10-VERIFICATION.md

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+# Phase 10 Verification: Help Text Phase 2
+
+**Phase Goal:** Two-color help text styling where keys are pink/magenta and labels are default foreground
+
+**Status:** passed
+**Score:** 5/5 must-haves verified
+
+## Must-Have Verification
+
+### Truths
+
+| # | Truth | Status | Evidence |
+|---|-------|--------|----------|
+| 1 | Keys are visually distinct from action labels | PASS | `style_help_text()` applies `color_range(3)` only to keys; labels have no color applied |
+| 2 | Keys appear in pink/magenta color | PASS | color index 3 maps to pink/magenta per CLAUDE.md color system |
+| 3 | Labels appear in default foreground color | PASS | Labels are not wrapped in any `color_range()`, using default text color |
+
+### Artifacts
+
+| Path | Provides | Contains | Status | Evidence |
+|------|----------|----------|--------|----------|
+| `src/ui/renderer.rs` | Two-color help text rendering | `color_range(3` | PASS | Lines 476-485: `style_help_text()` function; Line 481: `result.color_range(3, start..start + key.len())` |
+
+### Key Links
+
+| From | To | Via | Pattern | Status | Evidence |
+|------|----|----|---------|--------|----------|
+| `render_help_text` | `print_text_with_coordinates` | selective color_range for keys only | `color_range\(3` | PASS | Lines 507-512: `style_help_text()` applies selective coloring, result passed to `print_text_with_coordinates()` |
+
+## Implementation Details
+
+The `style_help_text` helper function (lines 476-485):
+```rust
+fn style_help_text(text: &str, keys: &[&str]) -> Text {
+    let mut result = Text::new(text);
+    for key in keys {
+        if let Some(start) = text.find(key) {
+            result = result.color_range(3, start..start + key.len());
+        }
+    }
+    result
+}
+```
+
+Keys colored for both help rows:
+- Row 1 (has sessions): `["↑/↓", "Type", "Enter", "Esc"]`
+- Row 2 (has sessions): `["Ctrl+Enter", "Alt+r", "Alt+d", "Ctrl+r", "Del"]`
+- Row 1 (empty): `["Type", "Enter", "Esc"]`
+- Row 2 (empty): `["Ctrl+Enter"]`
+
+## Build Verification
+
+- `cargo build --target wasm32-wasip1` - PASS
+- `cargo clippy --target wasm32-wasip1 -- -D warnings` - PASS
+
+## Conclusion
+
+All must-haves verified. The implementation correctly applies two-color styling to help text, with keys in pink/magenta (color index 3) and labels in default foreground color.