v0.5.50: import improvements, ui upgrades, kb styling and performance improvements

[waleedlatif1]

• fix(import): fix missing blocks in import if undefined keys exist (fix(import): fix missing blocks in import if undefined keys exist #2674)
• fix(variables): fix variables block parsing error for json (fix(variables): fix variables block parsing error for json #2675)
• feat(popover): sections; improvement: tooltip, popover; fix(notifications): loading content (improvement: popover, tooltip, notifications #2676)
• fix(kalshi): remove synthetically constructed outputs (fix(kalshi): remove synthetically constructed outputs #2677)
• fix(grain): save before deploying workflow (fix(grain): save before deploying workflow #2678)
• fix(kb): fix styling inconsistencies, add rename capability for documents, added search preview (fix(kb): fix styling inconsistencies, add rename capability for documents, added search preview #2680)
• improvement(kb): add configurable concurrency to chunks processing, sped up 22x for large docs (improvement(kb): add configurable concurrency to chunks processing, speedup up to 22x for large docs #2681)

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Jan 5, 2026 8:31am

[greptile-apps]

Greptile Summary

This PR consolidates 7 fixes and improvements across workflow import/export, UI components, integrations, and knowledge base performance.

Key Changes:

• Import robustness: Added validation to filter malformed subBlocks (undefined keys, missing IDs) during workflow import and export, preventing Zod validation errors
• Variables parsing: Fixed JSON parsing for variable assignments that were stringified during import
• KB performance: Implemented concurrent batch processing for embeddings (50 concurrent by default), achieving 22x speedup for large documents
• UI improvements: Refactored popover component with sections support and inverted color scheme; improved KB document management with rename capability and search preview
• Integration fixes: Removed synthetically constructed dollar outputs from Kalshi; added Grain webhook reachability test to allow saving before deployment
• Styling: Updated scrollbar styling and added --text-muted-inverse CSS variable (violates style guide about editing globals.css)

Minor Concerns:

• Changes to globals.css violate custom rule about avoiding edits to this file unless absolutely necessary

Confidence Score: 4/5

• This PR is safe to merge with minor style guideline violation
• Score reflects well-tested bug fixes and performance improvements across multiple areas. The changes are logical, self-contained, and address real issues. One point deducted for violating the custom rule about editing globals.css, though the impact is minimal. All changes follow defensive programming practices (validation, error handling) and improve system robustness.
• No files require special attention - all changes are straightforward and well-implemented

Important Files Changed

Filename	Overview
apps/sim/stores/workflows/json/importer.ts	Added validation to filter out malformed subBlocks during import (undefined keys, missing IDs, unknown types)
apps/sim/components/emcn/components/popover/popover.tsx	Refactored popover component with sections support, inverted color scheme, improved styling organization
apps/sim/lib/knowledge/embeddings.ts	Added concurrent batch processing (50 concurrent by default) for 22x performance improvement on large documents
apps/sim/app/workspace/[workspaceId]/knowledge/[id]/base.tsx	Added document rename capability, search preview, improved table styling, context menu selection behavior
apps/sim/app/_styles/globals.css	Updated scrollbar styling and light mode colors; added text-muted-inverse variable (violates style guide rule c3b5e4b0)

Sequence Diagram

sequenceDiagram
    participant User
    participant WorkflowImporter
    participant CredentialExtractor
    participant VariablesInput
    participant KnowledgeBase
    participant EmbeddingsAPI
    participant WebhookEndpoint
    
    Note over User,WebhookEndpoint: Import/Export Flow
    User->>WorkflowImporter: Import workflow JSON
    WorkflowImporter->>WorkflowImporter: normalizeSubblockValues()
    WorkflowImporter->>WorkflowImporter: Filter malformed subBlocks
    WorkflowImporter->>VariablesInput: Load variables
    VariablesInput->>VariablesInput: parseVariableAssignments()
    VariablesInput->>VariablesInput: Parse JSON strings
    VariablesInput-->>User: Display parsed variables
    
    User->>CredentialExtractor: Export/Share workflow
    CredentialExtractor->>CredentialExtractor: removeMalformedSubBlocks()
    CredentialExtractor->>CredentialExtractor: Sanitize credentials
    CredentialExtractor-->>User: Clean workflow JSON
    
    Note over User,WebhookEndpoint: Knowledge Base Processing
    User->>KnowledgeBase: Upload document
    KnowledgeBase->>EmbeddingsAPI: Generate embeddings (concurrent)
    loop 50 concurrent batches
        EmbeddingsAPI->>EmbeddingsAPI: Process batch
    end
    EmbeddingsAPI-->>KnowledgeBase: Return embeddings (22x faster)
    KnowledgeBase-->>User: Document processed
    
    Note over User,WebhookEndpoint: Webhook Flow
    User->>WebhookEndpoint: Save Grain trigger
    WebhookEndpoint->>WebhookEndpoint: handleProviderReachabilityTest()
    WebhookEndpoint-->>User: 200 OK (before deployment)

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[greptile-apps]

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