Add scheduled alerts worker and shared telegram package

[valuecodes]

What

• Adds a home for recurring scheduled notifications (e.g. a daily "S&P 500 % below ATH"). Stage 1 ships a single healthcheck alert, built around an extensible array of alerts.
• New non-public cron Worker apps/alerts (workers_dev: false); the scheduled handler dispatches per-alert by matching event.cron, so alerts can mix cadences.
• Extracts Telegram sending into a shared @repo/telegram package; apps/operator now consumes it instead of its local service.
• Splits package exports into . (impl) vs ./types for telegram/logger/http-client, and adds a repo-wide no-barrel-re-export ESLint rule in the base config.

How to test

pnpm typecheck
pnpm lint
pnpm test
pnpm format:check
Recommended: pnpm --filter @repo/alerts dev
Recommended: curl "http://localhost:8787/__scheduled?cron=0+8+*+*+*"

Security review

• Secrets / env vars: alerts worker reads TELEGRAM_BOT_TOKEN + ALLOWED_CHAT_ID (zod-validated); set in prod via wrangler secret put, never committed.
• Network / API calls: alerts worker sends outbound to the Telegram Bot API via @repo/telegram; reuses the operator's bot and registers no inbound webhook.

[Copilot]

Pull request overview

Adds a new scheduled “alerts” Cloudflare Worker and extracts Telegram sending into a shared @repo/telegram package, while tightening module boundaries by exposing types via explicit package.json subpath exports and enforcing a repo-wide “no barrel re-exports” ESLint rule.

Changes:

• Introduce apps/alerts (scheduled-only Worker) with an extensible alerts registry and a stage-1 daily healthcheck alert.
• Create packages/telegram and migrate apps/operator to consume it (plus ./types subpath usage).
• Add explicit ./types exports for logger/http-client and enforce no re-export “barrels” via ESLint.

Reviewed changes

Copilot reviewed 32 out of 34 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tooling/eslint/base.ts	Adds repo-wide restriction against re-export “barrels”.
pnpm-lock.yaml	Registers new apps/alerts and packages/telegram workspaces and deps.
packages/telegram/vitest.config.ts	Adds Vitest config for the new telegram package.
packages/telegram/tsconfig.json	Adds TS config for the new telegram package.
packages/telegram/src/types.ts	Defines Zod schemas + exported types for Telegram API payloads.
packages/telegram/src/telegram.ts	Implements TelegramService on top of @repo/http-client.
packages/telegram/src/telegram.test.ts	Adds unit tests for TelegramService methods and error handling.
packages/telegram/package.json	Declares @repo/telegram exports, including ./types.
packages/telegram/eslint.config.ts	Hooks the shared base ESLint config for the new package.
packages/logger/src/logger.ts	Removes type re-exports to comply with no-barrel policy.
packages/logger/package.json	Adds ./types export subpath.
packages/http-client/src/http-client.ts	Removes type re-exports to comply with no-barrel policy.
packages/http-client/package.json	Adds ./types export subpath.
apps/operator/src/types/telegram.ts	Removes Telegram send/edit param schemas/types now provided by @repo/telegram.
apps/operator/src/scheduled.ts	Switches scheduled handler to use shared TelegramService.
apps/operator/src/modules/telegram/ui.ts	Switches InlineKeyboardMarkup type import to @repo/telegram/types.
apps/operator/src/modules/telegram/conversation-runner.ts	Updates TelegramService type import to shared package.
apps/operator/src/modules/telegram/controller.ts	Updates controller to use shared TelegramService.
apps/operator/src/middleware/tests/logger.test.ts	Updates LogEntry type import to @repo/logger/types.
apps/operator/package.json	Adds dependency on @repo/telegram.
apps/alerts/wrangler.jsonc	Adds Worker config (scheduled trigger, no dev deployment, observability).
apps/alerts/tsconfig.json	Adds TS config for the alerts worker.
apps/alerts/src/types/env.ts	Adds Zod validation for alerts worker bindings.
apps/alerts/src/scheduled.ts	Implements scheduled dispatch to per-alert runners and Telegram sending.
apps/alerts/src/scheduled.test.ts	Adds tests for cron matching and Telegram sending behavior.
apps/alerts/src/index.ts	Wires the scheduled handler into the Worker default export.
apps/alerts/src/alerts/types.ts	Defines the Alert contract and context passed to alerts.
apps/alerts/src/alerts/index.ts	Registers the alert list (currently healthcheck).
apps/alerts/src/alerts/healthcheck.ts	Implements the stage-1 daily heartbeat alert.
apps/alerts/README.md	Documents behavior, local dev workflow, and secret setup.
apps/alerts/package.json	Adds new workspace package config and scripts.
apps/alerts/eslint.config.ts	Hooks the shared base ESLint config for the alerts app.
AGENTS.md	Updates repo snapshot to include the new app/package workspaces.
.github/workflows/main.yml	Adds deploy step for @repo/alerts to Cloudflare Workers.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

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