feat(jamie-skills): Add journal.jamie.clinic graphic style guide

Add dedicated graphic design style guide for "정기호의 성형외과 진료실 이야기"
channel (journal.jamie.clinic) to jamie-brand-editor and jamie-brand-audit skills.

Style guide includes:
- Color palette: Light Blue Gray (#E0E5EB) background, Soft Black (#333333) text
- Typography: Sans-serif/Gothic fonts with English medical term annotations
- Graphics: Medical schematic style illustrations, muted blue/gray accents only
- Layout: Grid-aligned with generous white space

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

custom-skills/40-jamie-brand-editor/code/CLAUDE.md

@@ -67,3 +67,43 @@ See `desktop/` for:
 - `brand_guidelines/` - Voice and tone guide
 - `regulations/` - Medical ad law summary
 - `procedures_dataset/` - Procedure information
+
+---
+
+## Journal Channel Graphic Style Guide
+
+**Channel**: "정기호의 성형외과 진료실 이야기" (https://journal.jamie.clinic)
+
+When proposing new graphics for this channel, follow the Jamie Clinic blog style below.
+
+### 1. Tone & Manner
+- **Professional & Medical**: Clean, organized design that builds trust. No excessive decoration or humor.
+- **Clear & Intuitive**: Simplify complex information for instant comprehension.
+- **Clean & Minimalist**: Use generous white space for an uncluttered, refined appearance.
+
+### 2. Color Palette
+
+| Element | Color | Hex Code |
+|---------|-------|----------|
+| **Background (Main)** | Light Blue Gray | #E0E5EB |
+| **Background (Content)** | White | #FFFFFF |
+| **Text** | Soft Black | #333333 |
+| **Accent (Upper Eyelid)** | Muted Blue | (desaturated, calm) |
+| **Accent (Lower Eyelid)** | Muted Gray | (desaturated, calm) |
+
+**Important**: Avoid saturated primary colors (red, yellow, bright blue). All colors must be toned-down/muted.
+
+### 3. Typography & Hierarchy
+- **Font Style**: Modern sans-serif (Gothic) with high readability. No decorative or serif fonts.
+- **Titles**: Largest size, Bold weight
+- **Body/Labels**: Medium size, Regular/Medium weight
+- **English Terms**: Medical terminology MUST include English in parentheses, slightly smaller or lighter than Korean (e.g., 상안검 (Upper Eyelid))
+
+### 4. Graphic Elements Style
+- **Illustrations (Anatomy)**: Medical schematic style, not overly realistic. Clean line art with semi-transparent color overlays.
+- **Icons (Infographics)**: Simple flat design with subtle shadows/gradients for soft depth.
+- **Arrows/Pointers**: Simple, clean straight lines or gentle curves. Use brand accent colors (muted blue/gray).
+
+### 5. Layout & Composition
+- **Alignment**: Center-aligned or clear 2-column/N-column grid structure for visual stability.
+- **White Space**: Generous spacing between text, images, and content blocks to minimize interference and create an airy feel.