Fix duplicate entries in add column options

[aks07]

📄 Summary

Introduces attribute variant awareness and deduping in the options UI.

• Uses composite attribute keys via buildAttributeKey and parsing helpers to uniquely identify columns and prevent duplicates in AddColumn and logs options menu
• New FieldVariantBadges component and styles to display fieldDataType and fieldContext tags for attributes with the same name in option lists and selected columns
• Updates OptionsMenu/LogsFormatOptionsMenu logic, styling, and popover focus/blur handling; widens nested menu and adds truncation wrappers
• Fixes duration_nano type to number in defaults
• Adds unit/UI tests covering badge rendering and variant display in both Logs and Traces views

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✅ Changes

• Feature: Brief description
• Bug fix: Brief description

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🔍 Related Issues

Closes #
https://github.com/SigNoz/engineering-pod/issues/3345

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📸 Screenshots / Screen Recording (if applicable / mandatory for UI related changes)

Before:

Attribute keys with same name and different dataTypes breaking the options in trace explorer

Screen.Recording.2026-01-08.at.2.25.10.PM.mov

After:

Show badges for multi-variant attribute keys in traces and logs column options
Traces

Screen.Recording.2026-01-08.at.3.57.14.PM.mov

Logs Options

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📋 Checklist

• Dev Review
• Test cases added (Unit/ Integration / E2E)
• Manually tested the changes

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Note

Introduces attribute-variant awareness and deduping in options UIs.

• Add FieldVariantBadges (with styles) to show fieldDataType and fieldContext for attributes with identical names
• Use composite attribute keys via buildAttributeKey/parseAttributeKey and getOptionLabelCounts to uniquely select/remove columns and detect multi-variant labels in OptionsMenu and LogsFormatOptionsMenu
• Update add-column lists and selected columns to render badges; widen nested menu and add truncation wrappers; manage popover focus/blur
• Fix default duration_nano type to number
• Add unit/UI tests covering variant badge rendering in Logs and Traces views

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[srikanthccv]

Hi @aks07 , please hold the PR for some time, there is alternative proposal to handle the conflicting field keys in explorer, https://signoz-team.slack.com/archives/C02B85R4R0A/p1767770511772329. I sent an optional invite to you.