Toast duration and tooltip delay magic numbers across 100+ files

## Recommendation

### ♻️ REFACTOR: Define named constants for toast durations and tooltip delays

Raw numbers are scattered across the codebase with no named constants.

## What Was Found

### Toast `life:` Magic Numbers — 99 Occurrences
- Scattered across 48+ files (e.g., `useCoreCommands.ts`, `useFirebaseAuthActions.ts`, `useSelectionOperations.ts`)
- 8 distinct values: `1000`, `2000`, `3000`, `5000` etc. with no constants
- **Suggestion:** Define `TOAST_DURATION = { SHORT: 1000, DEFAULT: 3000, LONG: 5000 }` in a constants file

### Tooltip `showDelay` Overrides — 62 Files
- `useTooltipConfig` composable exists and defines `showDelay: 300`
- But 62 files hardcode inline `showDelay:` values (1000, 300, etc.)
- **Suggestion:** Use `useTooltipConfig()` consistently with named presets

## Context

These magic numbers make it impossible to adjust timing globally and create inconsistent UX.

**Estimated effort:** ~2-3 hours

---

**Category:** Refactoring Opportunity | **Confidence:** HIGH | **Tools:** Semantic analysis
_Filed by audit-code skill_

Part of #11022

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-11056-Toast-duration-and-tooltip-delay-magic-numbers-across-100-files-33e6d73d365081ffac8ddabade7ff35f) by [Unito](https://www.unito.io)