[codex] Refactor chat session boundaries#81
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Restructure the chat session engine around explicit class boundaries and types contracts. Records, leases, archives, and repository behavior now live in focused modules with types.ts entry points, while old loose helper functions were removed or folded into class methods. This makes session behavior easier to discover and extend: callers can scan each subfolder contract first, then follow the class implementation for the owning behavior instead of copying scattered helper patterns.
Configure @/* to resolve to src/* across TypeScript, Vite, Vitest, and shadcn component aliases, then update the session-service folder to use the alias for cross-module imports. The build now runs tsc-alias after TypeScript emits server and CLI files, so source imports can stay readable without leaving unresolved alias paths in published Node output.
Move the root conversation session service config and contract types into sessions/types.ts so the main session boundary follows the same contract-first pattern as records, leases, archives, and repository modules.
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Summary
Refactor the chat session engine folder around explicit class boundaries and lightweight
types.tscontracts.FileChatArchiveRepository.FileChatSessionRepositoryinstances and removed loose exported helper functions from the repository implementation.ChatSessionTitlesunder records as session metadata behavior.@/* -> src/*alias and updated the session-service folder to use it for cross-module imports.tsc-aliasto the build so server/CLI output rewrites source aliases before publishing.Why
The previous session folder mixed domain helpers, storage helpers, and thin wrapper functions. That made it hard to tell where new behavior belonged and encouraged future agents to copy scattered function patterns. The new structure makes each boundary discoverable: scan
types.tsfor the contract, then read the owning class for implementation details.The path alias keeps those boundaries readable without long
../../../..imports, whiletsc-aliaspreserves runtime safety for emitted Node files.Validation
yarn lintyarn typecheckyarn build