refactor: harden type safety and modernize core forms for Svelte 5

- Standardize 'ae_BaseObj' and event types in 'ae_types.ts' to handle nullable fields from V3 API/Dexie.
- Modernize Person, Address, and Contact forms with Svelte 5 Runes and reactive synchronization.
- Refactor Event Settings and its sub-components to use the 'onsave' callback pattern, removing deprecated dispatchers.
- Hardened 'element_data_store_v2' with safe initialization and localStorage caching logic.
- Clean up unused 'element_data_store.svelte' (V1) and suppress Electron environment type errors in 'tmp_shell_handlers.ts'.
- Update documentation and workspace settings to reflect Phase 5 reactive patterns.

src/routes/core/addresses/ae_comp__address_form.svelte

@@ -19,23 +19,42 @@
 
     // Form State (Runes)
     let formData = $state({
-        attention_to: address?.attention_to ?? '',
-        organization_name: address?.organization_name ?? '',
-        line_1: address?.line_1 ?? '',
-        line_2: address?.line_2 ?? '',
-        line_3: address?.line_3 ?? '',
-        city: address?.city ?? '',
-        state_province: address?.state_province ?? '',
-        postal_code: address?.postal_code ?? '',
-        country: address?.country ?? '',
-        // country_name: address?.country_name ?? '', // DO NOT USE - Scott 2026-01-09
-        timezone: address?.timezone ?? '',
-        latitude: address?.latitude ?? '',
-        longitude: address?.longitude ?? '',
-        notes: address?.notes ?? '',
-        enable: address?.enable ?? true,
-        hide: address?.hide ?? false,
-        priority: address?.priority ?? false
+        attention_to: '',
+        organization_name: '',
+        line_1: '',
+        line_2: '',
+        line_3: '',
+        city: '',
+        state_province: '',
+        postal_code: '',
+        country: '',
+        timezone: '',
+        latitude: '',
+        longitude: '',
+        notes: '',
+        enable: true,
+        hide: false,
+        priority: false
+    });
+
+    // Reset form when address prop changes
+    $effect(() => {
+        formData.attention_to = address?.attention_to ?? '';
+        formData.organization_name = address?.organization_name ?? '';
+        formData.line_1 = address?.line_1 ?? '';
+        formData.line_2 = address?.line_2 ?? '';
+        formData.line_3 = address?.line_3 ?? '';
+        formData.city = address?.city ?? '';
+        formData.state_province = address?.state_province ?? '';
+        formData.postal_code = address?.postal_code ?? '';
+        formData.country = address?.country ?? '';
+        formData.timezone = address?.timezone ?? '';
+        formData.latitude = address?.latitude ?? '';
+        formData.longitude = address?.longitude ?? '';
+        formData.notes = address?.notes ?? '';
+        formData.enable = address?.enable ?? true;
+        formData.hide = address?.hide ?? false;
+        formData.priority = address?.priority ?? false;
     });
 
     let is_loading = $state(false);