# Aether (AE) SvelteKit Application

This project is the frontend UI/UX for the Aether (AE) system, built with Svelte 5 (SvelteKit), Tailwind CSS, and Skeleton. It interfaces with a Python FastAPI backend.

## 🎯 Core Mandates (Safety & Efficiency)
- **Fast is slow. Slow is fast.** Deliberate, careful progress is better than rushed, error-prone actions.
- **Fail fast.** If a change breaks the system, revert immediately to the last known working version before attempting a new fix.
- **Commit early and often.** Working changes MUST be committed before starting major new modifications. Always test before committing.
- **Verify.** Perform syntax checks and basic compile verification before finalizing any code change.
- **Trust but verify.** Always verify tool outputs, assumptions, and system state before proceeding.

## 🏗️ Architecture & Standards

### Reactivity & Stores
- **Svelte 5 Runes:** Use `$state`, `$derived`, and `$effect` for component-level reactivity.
- **Dexie LiveQuery:** Results from `liveQuery` are observables. You **MUST** use the `$` prefix (e.g., `$lq__obj`) in templates and logic to subscribe to the live data. Failure to do so will result in accessing the observable object instead of its data.
- **Persistence:** Use `svelte-persisted-store` for data that must survive page refreshes (e.g., `ae_loc`, `journals_loc`).
- **Initialization:** Always initialize reactive state (`$state`) outside of `$props()` destructuring. Use `untrack` inside `$effect` when synchronizing props to local state to prevent infinite loops.

### ID Convention (Triple-ID Pattern)
- **Standard:** Use `id`, `[obj_type]_id`, and `[obj_type]_id_random` consistently.
- **Primary Key:** Always use `_id_random` (string) for routing, data fetching, and local storage.
- **Local Storage:** Alias `id_random` to both `id` (PK) and `[obj_type]_id` when saving to Dexie.

### API V3 Implementation
- **Robustness:** Use the standardized primary helpers (`get`, `post`, `patch`, `delete`) in `src/lib/ae_api/`.
- **SSR Parity:** Helpers support custom `fetch` injection for SvelteKit server-side execution.
- **Bootstrap Paradox:** Use the unauthenticated bypass (`x-no-account-id: "Nothing to See Here"`) for site/domain lookups.
- **Envelopes:** Helpers automatically handle the `{data: ...}` envelope returned by the backend.

### Data Pattern
1. **Fetch:** API Function calls the V3 endpoint.
2. **Process:** Dedicated `process_ae_obj__*_props` function handles data shaping, parent ID injection, and computed fields.
3. **Cache:** Save cleaned data to IndexedDB via `db_save_ae_obj_li__ae_obj`.

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## 🛠️ Tooling & Orchestration

### Aether Ops (MCP Extension)
- **`verify_api_integrity`**: Headless verification of the FastAPI stack.
- **`schema_sync`**: Syncs Pydantic models to TypeScript interfaces in `src/lib/types/ae_types.ts`.
- **`ae_obj_info`**: Metadata lookup for Aether objects.
- **UE-AE-01 Vision:** Moving towards a unified agent with total system awareness across MariaDB, FastAPI, SvelteKit, and Nginx.

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## 📂 Modules Overview

### Core Modules
- **Identity:** `accounts`, `people`, `users`.
- **Infrastructure:** `sites`, `site_domains`.
- **Storage:** `hosted_files`.

### Feature Modules
- **Events:** Presentation management, Badge printing, QR tracking.
- **Journals:** Documentation, notes, and AI-assisted summarization.
- **IDAA:** Client-specific logistics and video conferencing (Jitsi).

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## 📝 Development History (Consolidated)

### Launcher Phase 4 & Hardening (2026-01-26)
- **Heartbeat Engine:** Implemented V3-compliant heartbeat and room refresh cycles.
- **UI Integration:** Migrated heartbeat/sync status from "Secret Monitor" to formal **Launcher Config Drawer**.
- **Timezone Fix:** Resolved "future time" issue by standardizing on UTC ISO strings and removing manual 'Z' suffixing in `ae_events__event_device.ts`.
- **MySQL Compatibility:** Fixed Error 1292 by formatting heartbeats to `YYYY-MM-DD HH:mm:ss` using `ae_util.iso_datetime_formatter`.
- **API V3 Hardening:** Implemented auto-serialization for `_json` fields in V3 CRUD helpers to prevent 'str type expected' validation failures.
- **Singleton Consolidation:** Moved `LauncherBackgroundSync` to the root launcher layout to ensure a single execution loop.
- **IDAA Jitsi Reports:** Fixed a `TypeError` in report processing and restored filtering logic. Added explicit `x-account-id` headers to resolve 403 Forbidden errors.

### Hardening & Error Reduction Sprint (2026-01-22)
- **Error Reduction:** Systematically cleared ~133 `svelte-check` errors (from 372 to 239) across the entire application.
- **Type Hardening:** Resolved ambient module errors in `analytics.svelte`, fixed `onsubmit` mismatches in file uploads, and hardened CodeMirror element casting.

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## 🧠 Session Context (2026-01-26)
- **Status:** Phase 4 Implementation Complete & Verified.
- **Recent Actions:**
    - Integrated heartbeat/sync observability into formal Config UI.
    - Fixed `ReferenceError` and `illegal variable name` ($events_sess) errors.
    - Resolved persistent 400/403 errors in Jitsi and Heartbeat logic.
- **Pending Tasks:**
    - [ ] Implement Phase 5 AppleScript handlers for PowerPoint/Keynote.
    - [ ] Build Telemetry Dashboard in Launcher Config (CPU/RAM visuals).

## 🔗 Resources
- **Reference Stubs:** `agents_sync/technical/references/` (Svelte 5, Dexie, FastAPI).
- **Official Docs:** [Svelte Runes](https://svelte.dev/blog/runes) | [Dexie Quick Ref](https://dexie.org/docs/API-Reference#quick-reference)