refactor(appkit-ui): remove unused recharts ChartContainer, drop recharts dep

[MarioCadenas]

Summary

Removes the unused shadcn ChartContainer component and drops the recharts dependency from @databricks/appkit-ui.

src/react/ui/chart.tsx (the shadcn ChartContainer / ChartTooltip / ChartLegend / ChartStyle wrapper) was exported from @databricks/appkit-ui/react but is not used anywhere in the repo. It imported the entire recharts library via import * as RechartsPrimitive, and recharts was declared as a peerDependency — so consumers were told to install a whole charting library for a component the public API never actually wired up. The echarts-based components in react/charts/ are the charting API.

Changes

• Delete src/react/ui/chart.tsx and its barrel re-export from ui/index.ts
• Remove recharts from peerDependencies and devDependencies
• Drop the decorative recharts chart from the drawer example
• Regenerate component docs (removes ChartContainer.mdx, updates the examples registry)

Non-breaking

The removed exports are dead code — unused across apps/, template/, and tests. dev-playground uses recharts through its own dependency and is unaffected. No shipped/used API surface changes.

Verification

• pnpm --filter=@databricks/appkit-ui build:package — pass
• pnpm --filter=@databricks/appkit-ui typecheck — pass
• recharts removed from pnpm-lock.yaml
• docs regenerated; only ChartContainer.mdx removed + drawer example source updated (no unrelated MDX churn)

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📦 Bundle size report

Compared against bundle-size-baseline.json (main).

@databricks/appkit

npm tarball (packed): 658 KB — gzipped download (dist + bin; excludes release-only docs/NOTICE).

dist	raw	gzip
JS (runtime)	686 KB	240 KB
Type declarations	268 KB	91 KB
Source maps	1.3 MB	445 KB
Other	11 KB	3.7 KB
Total	2.3 MB	779 KB

Per-entry composition (own code — deps external (as shipped))

Entry	Initial (gz)	Lazy (gz)	Total (gz)	node_modules (min)	Own code (min)
.	74 KB	2.5 KB	76 KB	external	243 KB
./beta	39 KB	231 B	39 KB	external	117 KB
./type-generator	18 KB	0 B	18 KB	external	53 KB

Chunks:

Entry	Chunk	Load	Size (gz)
.	index.js	initial	70 KB
.	utils.js	initial	4.0 KB
.	remote-tunnel-manager.js	lazy	2.5 KB
./beta	beta.js	initial	30 KB
./beta	databricks.js	initial	5.7 KB
./beta	service-context.js	initial	3.1 KB
./beta	client-options.js	initial	220 B
./beta	databricks.js	lazy	128 B
./beta	index.js	lazy	103 B
./type-generator	index.js	initial	18 KB

@databricks/appkit-ui

npm tarball (packed): 290 KB (-7.5 KB) — gzipped download (dist + bin; excludes release-only docs/NOTICE).

dist	raw	gzip
JS (runtime)	346 KB (-8.0 KB)	115 KB (-2.5 KB)
Type declarations	199 KB (-4.5 KB)	72 KB (-1.4 KB)
Source maps	659 KB (-16 KB)	215 KB (-5.0 KB)
CSS	16 KB	3.3 KB
Total	1.2 MB (-29 KB)	404 KB (-9.0 KB)

Per-entry composition (consumer bundle — deps bundled, peerDeps external)

Entry	Initial (gz)	Lazy (gz)	Total (gz)	node_modules (min)	Own code (min)
./js	4.2 KB	49 KB	54 KB	208 KB	11 KB
./js/beta	20 B	0 B	20 B	0 B	0 B
./react	427 KB (-1.5 KB)	49 KB	476 KB (-1.5 KB)	1.3 MB (-19 B)	162 KB (-4.3 KB)
./react/beta	20 B	0 B	20 B	0 B	0 B

Chunks:

Entry	Chunk	Load	Size (gz)
./js	index.js	initial	4.1 KB
./js	chunk	initial	120 B
./js	apache-arrow	lazy	49 KB
./js/beta	beta.js	initial	20 B
./react	index.js	initial	425 KB
./react	tslib	initial	2.1 KB
./react	apache-arrow	lazy	49 KB
./react/beta	beta.js	initial	20 B