Refactor database credentials and clean up code

[mahata]

Extract database credentials into a separate configuration file to enhance code organization and maintainability. Clean up unnecessary code and improve type usage for user objects throughout the application.

[Copilot]

Pull request overview

Refactors database connection configuration into a shared module and standardizes User typing across routes/components, while removing noisy logging and simplifying client-side chat setup.

Changes:

• Centralize Postgres connection options in hono/db/config.ts and reuse from both runtime DB setup and drizzle.config.ts.
• Introduce a shared User type in hono/types.ts and replace inline user-object casts across routes/components.
• Simplify chat client script and remove excessive server-side console logging.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
hono/types.ts	Adds shared User type used across server and components.
hono/static/ChatPage.ts	Removes data-attribute-driven class config; uses fixed constants and keeps WS URL from data-ws-url.
hono/routes/ws.ts	Uses shared User type and refactors inbound WS message decoding.
hono/routes/messages.ts	Uses shared User type for session user and minor import cleanup.
hono/routes/index.tsx	Uses shared User type and removes debug logging around auth/redirect.
hono/routes/auth.ts	Removes verbose OAuth debug logging while keeping session user persistence.
hono/db/index.ts	Switches pool creation to use centralized dbCredentials.
hono/db/config.ts	New shared DB credentials module (env parsing + defaults + ssl).
hono/components/ChatPage.tsx	Imports shared User type and removes now-unused data attributes.
drizzle.config.ts	Reuses dbCredentials for drizzle-kit configuration.

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