[NA] [FE] fix: assistant sidebar dev mode uses unhashed URLs

[awkoy]

Details

Fix assistant sidebar dev mode: the manifest fetch returned hashed filenames (assistant.{hash}.js) that don't exist on the ollie-console dev server (which serves unhashed assistant.js). Also consolidate fragmented dev mode detection into a single source of truth.

• New constants/assistant.ts with IS_ASSISTANT_DEV based on VITE_ASSISTANT_SIDEBAR_BASE_URL being set, replacing separate import.meta.env.DEV checks
• Skip manifest fetch entirely in dev mode — use unhashed file paths (/assistant/assistant.js) through the Vite proxy
• Update useAssistantBackend.ts to use the shared constant

Change checklist

• User facing
• Documentation update

Issues

N/A

AI-WATERMARK

AI-WATERMARK: yes

• Tools: Claude Code
• Model(s): Claude Opus 4.6
• Scope: full implementation
• Human verification: code review + manual testing

Testing

• npm run lint in apps/opik-frontend — passes
• Manual: run opik-frontend + ollie-console dev servers, verify sidebar loads with unhashed URLs
• Network tab: no manifest.json request in dev mode
• Production flow unchanged (manifest fetched, hashed URLs used)

Documentation

N/A

🤖 Generated with Claude Code

[github-actions]

📋 PR Linter Failed

❌ Missing Section. The description is missing the ## Details section.

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❌ Missing Section. The description is missing the ## Change checklist section.

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❌ Missing Section. The description is missing the ## Issues section.

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❌ Missing Section. The description is missing the ## Testing section.

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❌ Missing Section. The description is missing the ## Documentation section.

[baz-reviewer]

/assistant is hardcoded in multiple asset URLs, should we extract const ASSISTANT_STATIC_PREFIX = "/assistant" and reuse it when building those URLs?

_{Finding type: Extract naming constants | Severity: 🟢 Low}

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Other fix methods

Prompt for AI Agents:

Before applying, verify this suggestion against the current code. In
apps/opik-frontend/src/plugins/comet/AssistantSidebar.tsx around lines 184 to 188
(inside the useAssistantMeta function) and the earlier manifest return (around lines
172-175), the string "/assistant" is hardcoded for scriptUrl, cssUrl, and shellUrl.
Extract a descriptive module-level constant (for example: const ASSISTANT_STATIC_PREFIX
= "/assistant") at the top of the file and replace all hardcoded occurrences in this
file (the dev return object and the manifest-based shellUrl template) to build URLs via
`${ASSISTANT_STATIC_PREFIX}/...` or `${ASSISTANT_STATIC_PREFIX}/${manifest.shell}`.
Ensure you update both the dev branch and the manifest response to use the constant so
the prefix is consistent everywhere.