(wip) fix(apollo-react): introduce sankey diagram zoom and scale

[preston-bao]

Summary

• Add d3-zoom based zoom and pan to ApSankeyDiagram with Ctrl/Cmd+scroll filtering to avoid hijacking page scroll
• Auto-size SVG dimensions based on data complexity via computeSankeyDimensions utility
• Add zoom controls (zoom in/out, fit-to-view) with smart fit-to-view that respects user's manual zoom state
• Fix gradient rendering with userSpaceOnUse using actual link coordinates
• Fix JSDoc default values for minNodeHeight (36) and minColumnWidth (140)
• Change container role="img" to role="figure" for proper a11y with interactive children
• Expand showcase with larger multi-stage agent trace flow dataset

Test plan

• Verify zoom in/out buttons work correctly
• Verify fit-to-view resets zoom and centers content
• Verify Ctrl+scroll zooms, plain scroll passes through to page
• Verify drag-to-pan works without modifier keys
• Verify link gradients render correctly from source to target color
• Verify tooltips position correctly under zoom transforms
• Verify container resize doesn't reset user's manual zoom
• Verify new data prop triggers fit-to-view
• Run computeSankeyDimensions unit tests pass

🤖 Generated with Claude Code

[github-actions]

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Project	Deployment	Review	Updated (PT)
apollo-canvas	🟢 Ready	Preview, Logs	Feb 27, 2026, 01:54:47 PM
apollo-ui-react	🟢 Ready	Preview, Logs	Feb 27, 2026, 01:53:26 PM
apollo-vertex	🟢 Ready	Preview, Logs	Feb 27, 2026, 01:52:58 PM
apollo-wind	🟢 Ready	Preview, Logs	Feb 27, 2026, 01:52:25 PM

[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ⚠️ 2 package(s) with unknown licenses.

See the Details below.

License Issues

packages/apollo-react/package.json

Package	Version	License	Issue Type
d3-selection	^3.0.0	Null	Unknown License
d3-zoom	^3.0.0	Null	Unknown License

Allowed Licenses:

AFL-1.1, AFL-1.2, AFL-2.0, AFL-2.1, AMPAS, APAFML, Adobe-2006, Afmparse, ADSL, AMDPLPA, ANTLR-PD, Apache-1.0, Apache-1.1, Apache-2.0, AML, Artistic-1.0, Artistic-1.0-Perl, Artistic-1.0-cl8, Artistic-2.0, AAL, Bahyph, Barr, Beerware, BSL-1.0, Borceux, BSD-1-Clause, BSD-2-Clause, BSD-2-Clause-FreeBSD, BSD-2-Clause-NetBSD, BSD-3-Clause, BSD-3-Clause-Clear, BSD-3-Clause-No-Nuclear-License-2014, BSD-3-Clause-No-Nuclear-Warranty, BSD-4-Clause, BSD-Source-Code, BSD-3-Clause-Attribution, 0BSD, BSD-2-Clause-Patent, BSD-4-Clause-UC, bzip2-1.0.5, bzip2-1.0.6, CECILL-B, ClArtistic, MIT-CMU, CNRI-Jython, CNRI-Python, CNRI-Python-GPL-Compatible, Condor-1.1, CC0-1.0, Crossword, CrystalStacker, Cube, curl, diffmark, WTFPL, DOC, DSDP, ECL-1.0, ECL-2.0, eGenix, EFL-1.0, EFL-2.0, MIT-advertising, MIT-enna, Entessa, Fair, MIT-feh, FTL, Giftware, HPND, IBM-pibs, ICU, ImageMagick, IJG, Info-ZIP, Intel, ISC, JasPer-2.0, LPPL-1.3c, BSD-3-Clause-LBNL, Leptonica, Libpng, libtiff, Linux-OpenIB, LPL-1.02, LPL-1.0, MTLL, MS-PL, MirOS, MITNFA, MIT, MIT-0, mpich2, Multics, Mup, NASA-1.3, Naumen, NBPL-1.0, Net-SNMP, NetCDF, Newsletr, NLPL, NRL, NTP, OGTSL, OLDAP-2.2.2, OLDAP-1.1, OLDAP-1.2, OLDAP-1.3, OLDAP-1.4, OLDAP-2.0, OLDAP-2.0.1, OLDAP-2.1, OLDAP-2.2, OLDAP-2.2.1, OLDAP-2.3, OLDAP-2.4, OLDAP-2.5, OLDAP-2.6, OLDAP-2.7, OLDAP-2.8, OML, OpenSSL, PHP-3.0, PHP-3.01, Plexus, PostgreSQL, psutils, Python-2.0, Qhull, Rdisc, RSA-MD, Ruby, Saxpath, SWL, SGI-B-2.0, Spencer-86, Spencer-94, Spencer-99, SMLNJ, TCL, TCP-wrappers, TU-Berlin-1.0, TU-Berlin-2.0, Unlicense, Unicode-DFS-2015, Unicode-DFS-2016, UPL-1.0, NCSA, VSL-1.0, W3C-20150513, W3C-19980720, W3C, Wsuipa, Xnet, X11, Xerox, XFree86-1.1, xinetd, xpp, Zed, Zend-2.0, Zlib, zlib-acknowledgement, ZPL-1.1, ZPL-2.0, ZPL-2.1, BlueOak-1.0.0, BSD-2-Clause-Views, JSON

OpenSSF Scorecard

Package	Version	Score	Details
npm/@types/d3-selection	^3.0.11	Unknown	Unknown
npm/@types/d3-zoom	^3.0.8	Unknown	Unknown
npm/d3-selection	^3.0.0	Unknown	Unknown
npm/d3-zoom	^3.0.0	Unknown	Unknown

Scanned Files

• packages/apollo-react/package.json