docs: reorganize and rename documentation files for consistency

- Apply consistent prefix naming: AE__, GUIDE__, PROJECT__, MODULE__, TODO__
- Move superseded/session docs to documentation/history/
- Migrate old/ directory contents to history/ with updated naming
- README.md: replace stale Modules section with accurate current routes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

documentation/PROJECT__AE_Object_Field_Editor_V3_upgrade.md

@@ -0,0 +1,51 @@
+# Project Plan: Aether AE Obj Field Editor v3 (Consolidated)
+
+> **Status:** 🔵 Active / Testing & Stabilization
+> **Date:** February 13, 2026
+> **Target Component:** `src/lib/elements/element_ae_obj_field_editor_v3.svelte`
+> **Replaces:** `element_ae_crud.svelte` and `element_ae_crud_v2.svelte`
+
+## 1. Overview
+Consolidate the legacy CRUD components into a single, high-performance "Aether Object Field Editor" (v3). This component will be the standard for single-property editing across the platform, fully aligned with the FastAPI V3 CRUD patterns and Svelte 5 Runes.
+
+## 2. Strategic Objectives
+- **Consolidation:** Retire `v1` and `v2` components in favor of a single, unified codebase.
+- **API Alignment:** Native support for `PATCH /v3/crud/{obj_type}/{obj_id}`.
+- **Svelte 5 Runes:** Pure `$props`, `$state`, and `$derived` implementation. No legacy imports.
+- **Callback Pattern:** Replace `createEventDispatcher` with callback props (`on_patch`, `on_success`, `on_error`).
+- **Iconography:** Standardize on **Lucide-Svelte**.
+- **Mobile-First:** Improved "Tap to Edit" targets and mobile-responsive popovers.
+
+## 3. Implementation Phases
+
+### Phase 1: Foundation & Reactivity (COMPLETED)
+- [x] Create the new `v3` component shell.
+- [x] Implement strict TypeScript interface for Props.
+- [x] Use `$state` for local "draft" values to prevent reactivity loops with the global store.
+- [x] Implement the `handle_patch` logic using the central `api.patch` helper.
+
+### Phase 2: UI & UX Refinement (COMPLETED)
+- [x] Standardize Tailwind classes (using Tailwind 4 patterns).
+- [x] Implement "Edit Mode" awareness (syncing with `$ae_loc.edit_mode`).
+- [x] Add a "Save" loading state with Lucide's `LoaderCircle` spinner.
+- [x] Implement a clear "Cancel" path that restores the original value.
+
+### Phase 3: Field Type Parity (IN PROGRESS)
+- [x] Support `text`, `textarea`, `select`, `tiptap`, and `checkbox`.
+- [ ] Add `datetime` support using native browser pickers.
+- [ ] Implement searchable dropdowns for the `select` type.
+
+### Phase 4: Migration & Cleanup
+- [x] Create a playground route for V3 verification (`/testing/ae_obj_field_editor_v3`).
+- [ ] Deprecate and eventually remove `v1` and `v2` files.
+- [ ] Update `GUIDE__Development.md` with the new usage patterns.
+
+## ⚠️ Security & Reliability Stabilization (NEW)
+- [x] **Account Context:** Fixed 403 errors by unifying API helpers to the `/v3/crud/` standard.
+- [x] **Race Conditions:** Implemented `localStorage` scavenging for Account IDs to fix Svelte 5 hydration lags.
+- [x] **Protocol Hygiene:** Purged redundant/misplaced headers (`x-aether-api-token`, `Access-Control-Allow-Origin`).
+
+## 4. Maintenance & Standards
+- Component must respect `$ae_loc.trusted_access` for visibility of edit triggers.
+- Always use `type="button"` for internal actions to prevent form collisions.
+- Maintain the `object_reload` pattern for SWR cache invalidation.