style(fe): standardize AG Grid Odd/Even Zebra Stripes, Sky Blue hover and active row selection tokens in tokens.css and AGENTS.md

AGENTS.md

@@ -102,6 +102,11 @@ All work in this repository MUST follow `docs/CURRENT/WBS_EXECUTION_PROCEDURES.m
 - **[CRITICAL IRON RULE] Standardized Empty Data State Rule**: When zero records or empty dataset states occur, ALL grids, lists, and summary cards MUST render standard `EmptyStatePlaceholder` component (`📭` icon, clear title, descriptive helper text, and optional recovery action button). Blank white spaces or plain `<p>데이터가 없습니다</p>` text tags are STRICTLY PROHIBITED.
 - **[CRITICAL IRON RULE] Standardized UI Component Scale & Density Rule**: ALL UI components (grids, inputs, buttons, select, date fields, cards) MUST strictly inherit central Design System Tokens (`tokens.css` / `base.css`). Custom inline height/font overrides are STRICTLY PROHIBITED. Grid header height (`30px`), row height (`28px`), control height (`28px`), and grid font size (`12px`) MUST be universally uniform across all screens.
 - **[CRITICAL IRON RULE] Standardized Grid Row Numbering Rule**: Unless explicitly disabled (`showRowNumber: false`), ALL data grids MUST automatically prepend a pinned left `No.` column rendering 1-indexed sequential row numbers (`node.rowIndex + 1`) centered with `54px` fixed width.
+- **[CRITICAL IRON RULE] Standardized Grid Theme, Zebra Stripes & Color Palette Rule**: ALL data grids MUST inherit central Theme Color Tokens (`tokens.css`) without ad-hoc inline overrides. Grids MUST enforce:
+  1. **Header Background**: Premium Header Gray `#f1f5f9` (Dark Mode: `#1e293b`), font-weight: `700`.
+  2. **Zebra Stripes (Odd Rows)**: Even rows `#ffffff`, Odd rows (`.ag-row-odd`) `#f8fafc` (Dark Mode: `#0f172a`).
+  3. **Hover Color**: Sky Light Blue `#e0f2fe` (Dark Mode: `#334155`).
+  4. **Active Selection Color**: Active Selected Row Sky Blue `#dbeafe` with bold text `#1e3a8a` (Dark Mode: `#1e3a8a`).
 
 ## v16.0 Gitea API & CI/CD Automation