[TASK] Clean up project architecture - flatten renderer and rename core

[codewizdave]

Description

Clean up the project structure to make it more intuitive and maintainable.

Current Issues

1. Nested renderer folder

src/renderer/src/components  ❌

Should be:

src/renderer/components     ✅

2. Routes outside renderer

src/routes/ is at root level

Should be:

src/renderer/src/routes/    (moved into renderer)

3. Misleading "core" folder name

src/core/ contains main-process-only code

The name "core" implies shared code, but it's actually main-process specific.

Should be renamed to something clearer:

• src/server/ (if it runs on main)
• src/main-core/ (explicit)

4. Duplicate migrations folders

src/db/migrations/
src/core/db/migrations/

Proposed Structure

src/
├── main/              # Electron main process
├── preload/           # Preload scripts
├── renderer/          # React app (flattened)
│   ├── src/
│   │   ├── components/
│   │   ├── pages/
│   │   ├── routes/
│   │   ├── hooks/
│   │   ├── stores/
│   │   └── ...
│   └── index.html
├── server/            # Renamed from core (main process code)
│   ├── db/
│   ├── ipc/
│   └── lib/
└── routes/            # DELETE - move to renderer/src/routes/

Requirements

• Flatten src/renderer/src/ to src/renderer/
• Move src/routes/ to src/renderer/src/routes/
• Rename src/core/ to src/server/
• Delete duplicate src/db/ (keep src/core/db/)
• Update all import paths in the codebase
• Update electron.vite.config.ts
• Update tsconfig.json paths
• Update any references in package.json scripts

Priority

• priority:medium

Effort

• effort:l

Notes

• This is a refactor only, no functionality changes
• Will require updating import paths across many files