fix(apollo-react): default add-node search placeholder to "Search nodes" [MST-11831]

[KodudulaAshishUiPath]

Summary

• The add-node panel's search input showed a generic "Search" placeholder. Per the Flow building experience content audit, search placeholders should describe what will be searched.
• AddNodePanel now defaults its search placeholder to "Search nodes" (new lingui message addNodePanel.searchNodes).
• Both AddNodePanel and Toolbox expose an optional searchPlaceholder prop so hosts can pass scoped copy ("Search agents", "Search data nodes") per menu context.

Changes

• Toolbox: new optional searchPlaceholder prop; default behavior unchanged (lingui toolbox.search = "Search"), so other Toolbox consumers (e.g. StageNode) are unaffected
• AddNodePanel + AddNodePanel.types: pass-through prop, defaulting to "Search nodes"
• src/canvas/locales/en.json: addNodePanel.searchNodes entry (English only; translated catalogs land via the usual translator flow)

Testing

• Toolbox + AddNodePanel test suites pass (146 tests)
• turbo run typecheck --filter=@uipath/apollo-react green; biome lint shows only pre-existing warnings
• Note: pnpm run i18n:extract currently fails repo-wide on a pre-existing duplicate id in ap-chat (autopilot-chat.error.multiple-files has two different default texts) — the catalog entry was added by hand and verified with i18n:compile

[github-actions]

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Project	Deployment	Review	Updated (PT)
apollo-design	🟢 Ready	Preview, Logs	Jul 03, 2026, 04:54:47 AM
apollo-docs	🟢 Ready	Preview, Logs	Jul 03, 2026, 04:54:47 AM
apollo-landing	🟢 Ready	Preview, Logs	Jul 03, 2026, 04:54:47 AM
apollo-vertex	🟢 Ready	Preview, Logs	Jul 03, 2026, 04:54:47 AM

[github-actions]

Dependency License Review

• ✅ 1945 package(s) scanned
• ✅ No license issues found
• ⚠️ 2 package(s) excluded (see details below)

License distribution

License	Packages
MIT	1715
ISC	89
Apache-2.0	55
BSD-3-Clause	27
BSD-2-Clause	23
BlueOak-1.0.0	8
MPL-2.0	4
MIT-0	3
CC0-1.0	3
MIT OR Apache-2.0	2
(MIT OR Apache-2.0)	2
Unlicense	2
LGPL-3.0-or-later	1
Python-2.0	1
CC-BY-4.0	1
(MPL-2.0 OR Apache-2.0)	1
Unknown	1
Artistic-2.0	1
(WTFPL OR MIT)	1
(BSD-2-Clause OR MIT OR Apache-2.0)	1
CC-BY-3.0	1
0BSD	1
(MIT OR CC0-1.0)	1
MIT AND ISC	1

Excluded packages

Package	Version	License	Reason
@img/sharp-libvips-linux-x64	1.2.4	LGPL-3.0-or-later	LGPL pre-built binary, not linked
khroma	2.1.0	Unknown	MIT per GitHub repo, missing license field in package.json

[Copilot]

Pull request overview

Updates the canvas add-node search UX copy in @uipath/apollo-react so the placeholder describes what the user is searching, aligning with the referenced content audit guidance.

Changes:

• Added a new Lingui message id for the add-node search placeholder and defaulted it to “Search nodes” in AddNodePanel.
• Extended Toolbox with an optional searchPlaceholder prop (default remains the existing generic “Search”).
• Plumbed the optional searchPlaceholder through AddNodePanel so hosts can override it with context-specific copy.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
packages/apollo-react/src/canvas/locales/en.json	Adds addNodePanel.searchNodes English catalog entry (“Search nodes”).
packages/apollo-react/src/canvas/components/Toolbox/Toolbox.tsx	Introduces optional searchPlaceholder prop and applies it to the search input placeholder with a backwards-compatible default.
packages/apollo-react/src/canvas/components/AddNodePanel/AddNodePanel.types.ts	Adds optional searchPlaceholder prop to AddNodePanelProps.
packages/apollo-react/src/canvas/components/AddNodePanel/AddNodePanel.tsx	Defaults add-node placeholder to the new Lingui message (“Search nodes”) and passes through host override.

[github-actions]

📊 Coverage + size by package

Per-package coverage and bundle size on this PR. New-line coverage = of the source lines this PR adds or changes, the % hit by tests.

Package	Coverage	New-line coverage	Packed (gzip)	Unpacked	vs main
@uipath/apollo-core	9.0%	—	43.82 MB	57.31 MB	±0
@uipath/apollo-react	34.5%	100.0% (3/3)	7.27 MB	27.60 MB	+224 B
@uipath/apollo-wind	40.1%	—	392.5 KB	2.55 MB	+1 B
@uipath/ap-chat	85.8%	—	43.41 MB	55.85 MB	−10 B

_{"Coverage" is each package's own coverage.include scope (e.g. apollo-core instruments only scripts/). "Packed"/"Unpacked" come from npm pack --dry-run and only cover built packages — "—" means not measured this run (package not affected / not built). "vs main" is the packed (gzipped) delta against the last successful main build (the package-sizes artifact from the Release workflow); "—" there means no main baseline was available this run. The baseline is main's latest build, not this PR's exact merge-base, so it includes any drift since the branch diverged. Packages with no vitest config are omitted.}