docs: add editorconfig setup and remove completed task

- Add EditorConfig section to CONTRIBUTING.md with IDE plugins table
- Remove Issue #28 from Tasks.md (pre-commit hooks now documented)

CONTRIBUTING.md

@@ -24,7 +24,18 @@ make up
 
 Backend: http://127.0.0.1:8000 · Frontend (Vite proxy): http://127.0.0.1:5173
 
-### 3 — Pre-commit hooks
+### 3 — Editor Setup
+
+Install **EditorConfig** plugin for your IDE. Ensures consistent formatting (indent style, line endings) across all editors.
+
+| IDE | Plugin |
+|-----|--------|
+| VS Code | EditorConfig (ms-vscode.editorconfig) |
+| PyCharm / IntelliJ | Built-in (enable in Settings → Editor → Code Style) |
+| Vim / Neovim | editorconfig-vim |
+| Sublime Text | EditorConfig |
+
+### 4 — Pre-commit hooks
 
 **Backend** (pre-commit, all languages):
 

Docs/Tasks.md

@@ -1,39 +1,3 @@
-### Issue #28: LOW-MEDIUM - Missing Pre-Commit Hooks
-
-**Where found**: 
-- No `.pre-commit-config.yaml`
-- Docs mention husky but no `.husky/` directory
-
-**Why this is needed**: 
-Without pre-commit hooks, developers commit code that fails linting/tests, slowing down CI.
-
-**Goal**: 
-Enforce code quality checks before commit.
-
-**What to do**:
-1. Create `.pre-commit-config.yaml`:
-   ```yaml
-   repos:
-     - repo: https://github.com/pre-commit/pre-commit-hooks
-       hooks:
-         - id: check-yaml
-         - id: end-of-file-fixer
-     - repo: https://github.com/astral-sh/ruff-pre-commit
-       hooks:
-         - id: ruff
-         - id: ruff-format
-   ```
-2. Setup husky for frontend
-3. Document in CONTRIBUTING.md
-
-**Docs changes needed**:
-- Create CONTRIBUTING.md with setup instructions
-
-**Doc references**:
-- DATABASE_API_DEPLOYMENT_ISSUES.md - Issue "12.1 Missing Pre-Commit Hooks"
-
----
-
 ### Issue #29: LOW-MEDIUM - Missing .editorconfig
 
 **Where found**: