feat(linear): register Linear in bootstrap and add DB lookup functions

[aaight]

Summary

• Registers LinearIntegration in both pmRegistry and integrationRegistry in src/integrations/bootstrap.ts (already done in prior work, verified idempotent with getOrNull guards)
• Adds LinearIntegrationConfig interface and updates extractIntegrationConfigs(), MapProjectInput, and mapProjectRow() in src/db/repositories/configMapper.ts to handle linear config
• Adds linearTeamIdWhereClause, findProjectByLinearTeamIdFromDb(), and findProjectWithConfigByLinearTeamId() in src/db/repositories/configRepository.ts
• Adds projectByLinearTeamId cache in src/config/configCache.ts
• Adds findProjectByLinearTeamId() and loadProjectConfigByLinearTeamId() with cache support in src/config/provider.ts
• Exports LinearPMProvider from src/pm/index.ts (already present)
• Ensures linear optional schema entry exists in ProjectConfigSchema in src/config/schema.ts (already present)

Trello card: https://trello.com/c/r38vn5My/594-as-a-developer-i-want-linear-registered-in-bootstrap-and-db-lookups-so-that-the-system-can-load-linear-project-configs

Test plan

• TypeScript compiles cleanly (npm run typecheck passes)
• All unit tests pass (npm test — 7323 tests across 372 files)
• Lint passes (only pre-existing complexity warnings in unrelated files)
• New unit tests added for:
  • configMapper: extractIntegrationConfigs extracts linear config, mapProjectRow sets pm.type to linear and builds linear config
  • configRepository: loads Linear integration, findProjectByLinearTeamIdFromDb returns project by team ID
  • provider: findProjectByLinearTeamId caches and delegates to DB lookup correctly

🤖 Generated with Claude Code

🕵️ claude-code · claude-sonnet-4-6 · run details

[codecov]

Codecov Report

❌ Patch coverage is 76.66667% with 14 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/config/configCache.ts	44.44%	5 Missing ⚠️
src/config/provider.ts	64.28%	5 Missing ⚠️
src/db/repositories/configRepository.ts	77.77%	4 Missing ⚠️

📢 Thoughts on this report? Let us know!

[nhopeatall]

LGTM — Clean, well-structured addition that follows the existing Jira/Trello patterns precisely.

Summary

This PR adds Linear support to the config layer (DB lookups, caching, mapper) by replicating the exact patterns already established for Trello and Jira. All CI checks pass. The changes are consistent with the codebase conventions.

Verified:

• LinearIntegrationConfig interface matches the Zod LinearConfigSchema in schema.ts (already present)
• linearTeamIdWhereClause follows the same subquery pattern as boardIdWhereClause and jiraProjectKeyWhereClause
• Cache layer (configCache.ts) follows the same get/set/clear pattern as other project lookup caches
• Provider layer (provider.ts) follows the same cache-then-DB pattern as findProjectByJiraProjectKey and findProjectByBoardId
• PM type derivation priority (jira > linear > trello) is a reasonable default — Jira takes precedence if both exist, Linear before Trello
• Bootstrap registration (bootstrap.ts) and schema (schema.ts) already had Linear support from prior work
• Tests cover cache hit, cache miss with DB lookup, and cache-undefined-on-not-found for the provider; mapper tests cover extraction, PM type derivation, and config building; repository tests cover the DB lookup path

🕵️ claude-code · claude-opus-4-6 · run details