refactor: migrate shared dir to an internal package

[9romise]

No description provided.

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request restructures the codebase to convert an internal shared directory (previously referenced via #shared/* path aliases) into a published workspace package called npmx-shared. The changes establish a new packages/shared package with corresponding TypeScript and build configuration files, then systematically update all import statements across the VS Code extension and language service packages to consume shared modules (commands, constants, meta, protocol, types) from npmx-shared/* instead of the path aliases. Additionally, the pull request removes #shared/* mappings from TypeScript configurations, eliminates ./package.json export entries from language-core, language-server, and language-service packages, and updates build configurations to prevent automatic generation of package.json exports.

Possibly related PRs

• PR 92: Introduces the shared modules (commands, constants, meta, protocol) that form the basis of the new npmx-shared package exports.
• PR 81: Performs the same monorepo migration pattern of converting path-alias imports to a native published package and updating associated configuration files.
• PR 87: Updates the VS Code extension source files (client.ts, index.ts) that are directly affected by the import path changes in this refactoring.

🚥 Pre-merge checks | ❌ 1

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	The pull request lacks an author-provided description, making it impossible to assess alignment with the changeset.	Add a pull request description explaining the changes, rationale for migrating the shared directory to an internal package, and any breaking changes or migration steps.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch shared

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[coderabbitai]

Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: e7b8ee0a-0b51-4da4-9078-adede99fc616

📥 Commits

Reviewing files that changed from the base of the PR and between 09032ff and bf9678f.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (27)

• .gitignore
• extensions/vscode/package.json
• extensions/vscode/src/client.ts
• extensions/vscode/src/commands/add-to-ignore.ts
• extensions/vscode/src/index.ts
• extensions/vscode/src/state.ts
• extensions/vscode/tsconfig.json
• packages/language-core/package.json
• packages/language-core/tsdown.config.ts
• packages/language-server/package.json
• packages/language-server/src/workspace.ts
• packages/language-server/tsconfig.json
• packages/language-server/tsdown.config.ts
• packages/language-service/package.json
• packages/language-service/src/config.ts
• packages/language-service/src/plugins/diagnostics/actions.ts
• packages/language-service/src/plugins/diagnostics/index.ts
• packages/language-service/tsconfig.json
• packages/language-service/tsdown.config.ts
• packages/shared/package.json
• packages/shared/src/commands.ts
• packages/shared/src/constants.ts
• packages/shared/src/protocol.ts
• packages/shared/src/types.ts
• packages/shared/tsconfig.json
• packages/shared/tsdown.config.ts
• tsconfig.json