docs: refer to the web app as "W&B" instead of "W&B App"

[johndmulhausen]

Summary

Repo-wide terminology sweep: stop referring to the web application as "the W&B App" and use the umbrella term "W&B" instead. There is no "W&B App" product in the naming guidance (AGENTS.md says the platform is "W&B"), so this aligns the docs with that convention.

This was requested as a follow-up to review feedback on #2673 (where a reviewer flagged that "the W&B App" should no longer be used).

Scope

• 85 English files, 251 replacements.
• Excludes translated docs (ja/, fr/, ko/) and models/integrations/ — the integration files are actively changing in style: apply /style-guide pass to models/integrations #2673, so they're handled there to avoid overlapping edits between the two PRs.

Replacement rules

• W&B App UI → W&B (the UI is the app; "UI" was redundant).
• Real following nouns kept, only "App" dropped: W&B App URL/workspace/dashboard/navigation/tab/system → W&B URL/workspace/....
• the W&B App (as a noun) → W&B (article dropped so grammar stays clean, for example "in the W&B App" → "in W&B").
• Dangling articles before linked [W&B App](...) cleaned up (for example "Navigate to the W&B App" → "Navigate to W&B").

Notes for review

• A few <Tab> labels now read "W&B" next to siblings like "W&B CLI" or "Environment variable" (for example in platform/launch/add-job-to-queue.mdx, platform/hosting/iam/ldap.mdx). If you'd prefer "W&B UI" in those tab groups to keep the UI/CLI/SDK distinction, I can switch just those.
• One heading dropped "App" (models/registry/link_version.mdx). I verified no inbound links pointed at the old anchor.

How to review

Every change is "W&B App" → "W&B" (with grammar cleanup). No technical content changed.

🤖 Generated with Claude Code

[github-actions]

Knowledgebase navigation update

• Keywords not on the allowed list: 3 distinct keywords.

Generator warnings

• Unknown keyword Agents used in support/weave/articles/what-is-the-difference-between-weave-op-and-weave-sdk-for-agents.mdx. Add it to scripts/knowledgebase-nav/config.yaml to suppress this warning.
• Unknown keyword Tracing used in support/weave/articles/what-is-the-difference-between-weave-op-and-weave-sdk-for-agents.mdx. Add it to scripts/knowledgebase-nav/config.yaml to suppress this warning.
• Unknown keyword weave.op used in support/weave/articles/what-is-the-difference-between-weave-op-and-weave-sdk-for-agents.mdx. Add it to scripts/knowledgebase-nav/config.yaml to suppress this warning.

From workflow run 27038888988