feat: centralize middleware and improve routing from regex-based using TinyRouter

[vonuyvicoo]

What changed

• Centralized context creation: Moved createContext into functions/helpers/context.ts for reuse across routes and middleware.
• Centralized route wrappers: Extracted wrapHandler, wrapHandlerWithAuth, wrapHandlerWithConditionalAuth, and wrapHandlerWithOwnership into functions/helpers/wrappers.ts, consolidating auth and ownership checks.
• Simplified functions/index.ts: Replaced inline wrapper and context implementations with imports from the helpers, keeping the router configuration focused and readable.
• Removed ad hoc matching: By standardizing wrapper usage, we eliminated scattered, conditional, and regex-like handling in route definitions, making behavior consistent and easier to maintain.

Impact

• Cleaner routing layer: Route files now declare intent (public/protected/ownership) without duplicating boilerplate.
• Consistent middleware behavior: Auth and ownership checks are applied uniformly via wrappers.
• Easier reuse and testing: Shared helpers can be imported across future handlers without duplication.

Link to Issue

#18

[jasontorres]

Lovely work. I love it. Approving it and will wait for another team member to review! @angelofallars.

[jasontorres]

@vonuyvicoo can you join the discord chat as well? there's a project called Petitions by BetterGov.ph in there

[vonuyvicoo]

Sure! I'll join :)