docs: embed Caddy 反向代理架構 visual diagram in README

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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2026-04-21 16:19:55 +08:00
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<text x="20" y="36" font-size="26" font-weight="700" fill="#e6edf3">Caddy 反向代理架構</text>
<text x="20" y="60" font-family="'JetBrains Mono', 'Consolas', monospace" font-size="12" fill="#8b98a5">host: <tspan fill="#5ec9d6">192.168.42.127</tspan></text>
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<text x="44" y="192" text-anchor="middle" font-size="12" font-weight="700" fill="#ffd166">:80</text>
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<text x="50" y="493" text-anchor="middle" font-size="11" font-weight="700" fill="#ff6b9d">:3478/udp</text>
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<text x="130" y="88" font-family="'JetBrains Mono', 'Consolas', monospace" font-size="13" fill="#5ec9d6" font-weight="700">host · 192.168.42.127</text>
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<text x="160" y="153" font-size="15" font-weight="700" fill="#1dd1a1">Caddy</text>
<text x="213" y="153" font-size="13" font-weight="500" fill="#8b98a5">反向代理</text>
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<rect x="160" y="170" width="290" height="32" rx="6" fill="#0f1419" stroke="#2d3942"/>
<text x="176" y="191" fill="#ffd166" font-weight="700">/</text>
<text x="438" y="191" text-anchor="end" fill="#8b98a5">→ dashboard</text>
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<text x="176" y="270" fill="#ffd166" font-weight="700">/api/*</text>
<text x="438" y="270" text-anchor="end" fill="#8b98a5">→ netbird-server</text>
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<text x="176" y="308" fill="#ffd166" font-weight="700">/oauth2/*</text>
<text x="438" y="308" text-anchor="end" fill="#8b98a5">→ netbird-server</text>
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<text x="176" y="346" fill="#ffd166" font-weight="700">/relay*</text>
<text x="438" y="346" text-anchor="end" fill="#8b98a5">→ netbird-server</text>
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<text x="176" y="384" fill="#a29bfe" font-weight="700">gRPC</text>
<text x="438" y="384" text-anchor="end" fill="#8b98a5">→ netbird-server</text>
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<text x="790" y="182" font-size="14" font-weight="700" fill="#e6edf3">dashboard</text>
<text x="790" y="202" font-family="'JetBrains Mono', 'Consolas', monospace" font-size="11" fill="#8b98a5">Web UI</text>
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<text x="765" y="242" font-size="14" font-weight="700" fill="#e6edf3">netbird-server</text>
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<text x="742" y="269" fill="#8b98a5">HTTP API</text>
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<circle cx="730" cy="440" r="3" fill="#ff6b9d"/>
<text x="742" y="444" fill="#ff6b9d" font-weight="700">STUN (:3478/udp)</text>
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<text x="360" y="512" font-family="'JetBrains Mono', 'Consolas', monospace" font-size="11" fill="#ff6b9d" font-weight="700">STUN · 直送,不經 Caddy</text>
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<text x="46" y="779">HTTP (/) → dashboard</text>
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<text x="241" y="779">HTTP (/api, /oauth2, /relay) → netbird-server</text>
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<text x="831" y="779">UDP :3478 STUN直送</text>
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