feat(chart): add @hm-design/chart package with Bar, Line, Donut, Pie, Radar, Area and Radial charts

- new workspace package packages/chart (shadcn/ui Chart + Recharts, HM Theme tokens), examples entry with sample data
- Storybook Chart group (src/chart), consumer example (examples/chart), build:chart / build:chart-example scripts
- README rewritten as the AI usage guide (install, CSS wiring, chart selection, data rules, verification)
- docs: package count/list, Submodule guide (chart workspace, React dedupe), shared AI_GUIDE row, MAINTAINING, story inventory

.storybook/preview.tsx

@@ -45,6 +45,8 @@ const preview: Preview = {
           ],
           "Patterns",
           ["Data", ["Data Table", "Filter Bar"], "Layout", ["GNB", "LNB", "Dashboard Layout", "Loading Screen"]],
+          "Chart",
+          ["Bar Chart", "Line Chart", "Donut Chart", "Pie Chart", "Radar Chart", "Area Chart", "Radial Chart"],
           "OrgChart",
           ["Overview", "Department Colors", "Full Composition", "Expanded OrgChart"],
           "Center Graphic",

.storybook/qa/STORY-INVENTORY.md

@@ -6,16 +6,16 @@ This is a classification record. No Story IDs, exports or titles are renamed. HI
 
 ## Summary
 
-- PRIMARY: 82
+- PRIMARY: 89
 - VERIFICATION: 252
 - UTILITY: 38
 - LEGACY / DUPLICATE: 0
-- KEEP: 82
+- KEEP: 89
 - HIDE: 290
 - MERGE_CANDIDATE: 33
 - DELETE_CANDIDATE: 0
-- Story files: 82
-- Stories: 372
+- Story files: 89
+- Stories: 379
 - Hierarchy: Foundation → Components → Patterns → Center Graphic → Theme
 
 ## Full inventory
@@ -58,6 +58,48 @@ Source: `src/center/center-title.stories.tsx`; meta.tags: []
 - Compositions — Title; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
 - Playground — Playground; tags: ["verification"]; UTILITY; HIDE. Keep direct URL and tag-filter access; excluded from default sidebar.
 
+### Chart/Area Chart
+
+Source: `src/chart/area-chart.stories.tsx`; meta.tags: []
+
+- Area — Area Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
+### Chart/Bar Chart
+
+Source: `src/chart/bar-chart.stories.tsx`; meta.tags: []
+
+- Bar — Bar Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
+### Chart/Donut Chart
+
+Source: `src/chart/donut-chart.stories.tsx`; meta.tags: []
+
+- Donut — Donut Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
+### Chart/Line Chart
+
+Source: `src/chart/line-chart.stories.tsx`; meta.tags: []
+
+- Line — Line Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
+### Chart/Pie Chart
+
+Source: `src/chart/pie-chart.stories.tsx`; meta.tags: []
+
+- Pie — Pie Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
+### Chart/Radar Chart
+
+Source: `src/chart/radar-chart.stories.tsx`; meta.tags: []
+
+- Radar — Radar Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
+### Chart/Radial Chart
+
+Source: `src/chart/radial-chart.stories.tsx`; meta.tags: []
+
+- Radial — Radial Chart; tags: []; PRIMARY; KEEP. Representative story or distinct reference page.
+
 ### Components/Disclosure/Accordion
 
 Source: `src/components/accordion.stories.tsx`; meta.tags: []

.storybook/qa/story-inventory.json

@@ -1,15 +1,15 @@
 {
   "summary": {
-    "storyFiles": 82,
-    "stories": 372,
+    "storyFiles": 89,
+    "stories": 379,
     "categories": {
-      "PRIMARY": 82,
+      "PRIMARY": 89,
       "VERIFICATION": 252,
       "UTILITY": 38,
       "LEGACY / DUPLICATE": 0
     },
     "decisions": {
-      "KEEP": 82,
+      "KEEP": 89,
       "HIDE": 290,
       "MERGE_CANDIDATE": 33,
       "DELETE_CANDIDATE": 0
@@ -213,6 +213,132 @@
         }
       ]
     },
+    {
+      "file": "src/chart/area-chart.stories.tsx",
+      "title": "Chart/Area Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-area-chart--area",
+          "exportName": "Area",
+          "name": "Area Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
+    {
+      "file": "src/chart/bar-chart.stories.tsx",
+      "title": "Chart/Bar Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-bar-chart--bar",
+          "exportName": "Bar",
+          "name": "Bar Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
+    {
+      "file": "src/chart/donut-chart.stories.tsx",
+      "title": "Chart/Donut Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-donut-chart--donut",
+          "exportName": "Donut",
+          "name": "Donut Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
+    {
+      "file": "src/chart/line-chart.stories.tsx",
+      "title": "Chart/Line Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-line-chart--line",
+          "exportName": "Line",
+          "name": "Line Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
+    {
+      "file": "src/chart/pie-chart.stories.tsx",
+      "title": "Chart/Pie Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-pie-chart--pie",
+          "exportName": "Pie",
+          "name": "Pie Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
+    {
+      "file": "src/chart/radar-chart.stories.tsx",
+      "title": "Chart/Radar Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-radar-chart--radar",
+          "exportName": "Radar",
+          "name": "Radar Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
+    {
+      "file": "src/chart/radial-chart.stories.tsx",
+      "title": "Chart/Radial Chart",
+      "metaTags": [],
+      "stories": [
+        {
+          "id": "chart-radial-chart--radial",
+          "exportName": "Radial",
+          "name": "Radial Chart",
+          "storyTags": [],
+          "effectiveTags": [],
+          "category": "PRIMARY",
+          "decision": "KEEP",
+          "candidate": null,
+          "reason": "Representative story or distinct reference page."
+        }
+      ]
+    },
     {
       "file": "src/components/accordion.stories.tsx",
       "title": "Components/Disclosure/Accordion",