feat(web): add Open-In & Git diff stats with chat search UI #430

Job	Run time
nix-test (macos-14, aarch64-apple-darwin, dist/kimi)	2m 42s
test (3.13)	3m 19s
test (3.12)	3m 10s
release-validate	8s
nix-test (ubuntu-22.04-arm, aarch64-unknown-linux-gnu, dist/kimi)	1m 32s
test (3.14)	7m 8s
nix-test (ubuntu-22.04, x86_64-unknown-linux-gnu, dist/kimi)	1m 45s
	19m 44s

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