chore: remove superface dead code & deps

[mbani01]

Summary

Superface was previously used for Slack chat integration (via @superfaceai/one-sdk) and Twitter OAuth (via @superfaceai/passport-twitter-oauth2). Both integrations have since been replaced or removed, leaving all Superface code completely unreferenced.

This PR removes all dead Superface code, grid profiles, and drops the two unused dependencies.

Changes

Deleted source files:

• backend/src/serverless/integrations/usecases/chat/getMessages.ts
• backend/src/serverless/integrations/usecases/chat/getMembers.ts
• backend/src/serverless/integrations/usecases/chat/getMessagesThreads.ts
• backend/src/serverless/integrations/usecases/cleanError.ts
• backend/src/serverless/integrations/types/superfaceTypes.ts
• backend/src/services/auth/passportStrategies/twitterStrategy.ts (was already fully commented out)

Deleted Superface grid/config files (24 files):

• backend/superface/super.json
• backend/superface/providers/slack.json
• backend/superface/grid/chat/** (channels, members, messages, messages-threads, send-message, servers, threads profiles and maps)
• backend/superface/grid/oauth2/refresh-token@1.0.0.supr
• backend/superface/grid/social-media/** (followers, posts-lookup, profiles, publish-post, publishing-profiles)

Modified:

• backend/package.json — removed @superfaceai/one-sdk and @superfaceai/passport-twitter-oauth2
• .gitignore — removed /backend/superface/** entry
• pnpm-lock.yaml — updated after dependency removal

Why it's safe

None of the deleted source files were imported anywhere in the codebase. No routes, services, or controllers depended on Superface output.

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[Copilot]

Pull request overview

Removes legacy Superface integration artifacts (Slack chat + Twitter OAuth) that are no longer referenced, and drops the unused Superface dependencies from the backend workspace to reduce maintenance and transitive risk.

Changes:

• Removed @superfaceai/one-sdk and @superfaceai/passport-twitter-oauth2 from backend/package.json and updated pnpm-lock.yaml accordingly.
• Deleted the Superface grid/config files under backend/superface/** and related serverless integration usecases/types.
• Removed the repo-level .gitignore rule for /backend/superface/** since the directory is no longer present/used.

Reviewed changes

Copilot reviewed 31 out of 33 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Removes Superface packages and their transitive dependencies from the lockfile.
backend/package.json	Drops unused Superface dependencies from backend workspace dependencies.
.gitignore	Removes ignore rule for backend/superface/** now that Superface is removed.
backend/superface/super.json	Deletes Superface profile/provider configuration.
backend/superface/providers/slack.json	Deletes Superface Slack provider definition.
backend/superface/grid/social-media/publishing-profiles@1.0.0.supr	Deletes Superface social-media publishing-profiles profile.
backend/superface/grid/social-media/publish-post@1.0.0.supr	Deletes Superface social-media publish-post profile.
backend/superface/grid/social-media/profiles@1.1.0.supr	Deletes Superface social-media profiles profile.
backend/superface/grid/social-media/posts-lookup@1.3.0.supr	Deletes Superface social-media posts-lookup profile (v1.3.0).
backend/superface/grid/social-media/posts-lookup@1.1.0.supr	Deletes Superface social-media posts-lookup profile (v1.1.0).
backend/superface/grid/social-media/posts-lookup@1.0.0.supr	Deletes Superface social-media posts-lookup profile (v1.0.0).
backend/superface/grid/social-media/followers@1.2.0.supr	Deletes Superface social-media followers profile.
backend/superface/grid/oauth2/refresh-token@1.0.0.supr	Deletes Superface oauth2 refresh-token profile.
backend/superface/grid/chat/threads/profile.supr	Deletes Superface chat threads profile.
backend/superface/grid/chat/servers/profile.supr	Deletes Superface chat servers profile.
backend/superface/grid/chat/send-message@1.0.0.supr	Deletes Superface chat send-message profile (versioned file).
backend/superface/grid/chat/send-message/profile.supr	Deletes Superface chat send-message profile (profile.supr).
backend/superface/grid/chat/send-message/maps/slack.suma	Deletes Superface Slack map for send-message usecase.
backend/superface/grid/chat/messages@1.0.0.supr	Deletes Superface chat messages profile.
backend/superface/grid/chat/messages/slack.suma	Deletes Superface Slack map for messages usecase.
backend/superface/grid/chat/messages-threads/profile.supr	Deletes Superface chat messages-threads profile.
backend/superface/grid/chat/messages-threads/maps/slack.suma	Deletes Superface Slack map for messages-threads usecase.
backend/superface/grid/chat/members/profile.supr	Deletes Superface chat members profile.
backend/superface/grid/chat/members/maps/slack.suma	Deletes Superface Slack map for members usecase.
backend/superface/grid/chat/channels@1.0.0.supr	Deletes Superface chat channels profile (versioned file).
backend/superface/grid/chat/channels/profile.supr	Deletes Superface chat channels profile (profile.supr).
backend/superface/grid/chat/channels/maps/slack.suma	Deletes Superface Slack map for channels usecase.
backend/src/services/auth/passportStrategies/twitterStrategy.ts	Deletes commented-out Superface-based Twitter passport strategy stub.
backend/src/serverless/integrations/usecases/cleanError.ts	Deletes Superface-specific error cleanup helper.
backend/src/serverless/integrations/usecases/chat/getMessagesThreads.ts	Deletes Superface-based chat thread message retrieval usecase.
backend/src/serverless/integrations/usecases/chat/getMessages.ts	Deletes Superface-based chat message retrieval usecase.
backend/src/serverless/integrations/usecases/chat/getMembers.ts	Deletes Superface-based member listing usecase.
backend/src/serverless/integrations/types/superfaceTypes.ts	Deletes Superface-specific response type used by removed usecases.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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