refactor(services): align Capacitor and Web platform services with active_identity architecture

- Update CapacitorPlatformService.updateDefaultSettings() to use active_identity table instead of hard-coded id=1
- Update CapacitorPlatformService.retrieveSettingsForActiveAccount() to query by accountDid from active_identity
- Add getActiveIdentity() method to CapacitorPlatformService for consistency with WebPlatformService
- Update WebPlatformService.retrieveSettingsForActiveAccount() to match CapacitorPlatformService pattern
- Both services now consistently use active_identity table instead of legacy MASTER_SETTINGS_KEY approach
- Maintains backward compatibility with databaseUtil.ts for PWA migration support

Technical details:
- CapacitorPlatformService: Fixed hard-coded WHERE id = 1 → WHERE accountDid = ?
- WebPlatformService: Fixed retrieval pattern to match new architecture
- Platform services now aligned with migration 004 active_identity table schema
- databaseUtil.ts remains unchanged for PWA-to-SQLite migration bridge

src/services/platforms/CapacitorPlatformService.ts

@@ -1343,10 +1343,21 @@ export class CapacitorPlatformService implements PlatformService {
   async updateDefaultSettings(
     settings: Record<string, unknown>,
   ): Promise<void> {
+    // Get current active DID and update that identity's settings
+    const activeIdentity = await this.getActiveIdentity();
+    const activeDid = activeIdentity.activeDid;
+
+    if (!activeDid) {
+      logger.warn(
+        "[CapacitorPlatformService] No active DID found, cannot update default settings",
+      );
+      return;
+    }
+
     const keys = Object.keys(settings);
     const setClause = keys.map((key) => `${key} = ?`).join(", ");
-    const sql = `UPDATE settings SET ${setClause} WHERE id = 1`;
-    const params = keys.map((key) => settings[key]);
+    const sql = `UPDATE settings SET ${setClause} WHERE accountDid = ?`;
+    const params = [...keys.map((key) => settings[key]), activeDid];
     await this.dbExec(sql, params);
   }
 
@@ -1357,6 +1368,15 @@ export class CapacitorPlatformService implements PlatformService {
     );
   }
 
+  async getActiveIdentity(): Promise<{ activeDid: string }> {
+    const result = await this.dbQuery(
+      "SELECT activeDid FROM active_identity WHERE id = 1",
+    );
+    return {
+      activeDid: (result?.values?.[0]?.[0] as string) || "",
+    };
+  }
+
   async insertNewDidIntoSettings(did: string): Promise<void> {
     // Import constants dynamically to avoid circular dependencies
     const { DEFAULT_ENDORSER_API_SERVER, DEFAULT_PARTNER_API_SERVER } =
@@ -1385,7 +1405,15 @@ export class CapacitorPlatformService implements PlatformService {
     string,
     unknown
   > | null> {
-    const result = await this.dbQuery("SELECT * FROM settings WHERE id = 1");
+    // Get current active DID from active_identity table
+    const activeIdentity = await this.getActiveIdentity();
+    const activeDid = activeIdentity.activeDid;
+
+    if (!activeDid) {
+      return null;
+    }
+
+    const result = await this.dbQuery("SELECT * FROM settings WHERE accountDid = ?", [activeDid]);
     if (result?.values?.[0]) {
       // Convert the row to an object
       const row = result.values[0];
@@ -1393,8 +1421,8 @@ export class CapacitorPlatformService implements PlatformService {
       const settings: Record<string, unknown> = {};
 
       columns.forEach((column, index) => {
-        if (column !== "id") {
-          // Exclude the id column
+        if (column !== "id" && column !== "accountDid") {
+          // Exclude the id and accountDid columns
           settings[column] = row[index];
         }
       });

src/services/platforms/WebPlatformService.ts

@@ -753,7 +753,15 @@ export class WebPlatformService implements PlatformService {
     string,
     unknown
   > | null> {
-    const result = await this.dbQuery("SELECT * FROM settings WHERE id = 1");
+    // Get current active DID from active_identity table
+    const activeIdentity = await this.getActiveIdentity();
+    const activeDid = activeIdentity.activeDid;
+
+    if (!activeDid) {
+      return null;
+    }
+
+    const result = await this.dbQuery("SELECT * FROM settings WHERE accountDid = ?", [activeDid]);
     if (result?.values?.[0]) {
       // Convert the row to an object
       const row = result.values[0];
@@ -761,8 +769,8 @@ export class WebPlatformService implements PlatformService {
       const settings: Record<string, unknown> = {};
 
       columns.forEach((column, index) => {
-        if (column !== "id") {
-          // Exclude the id column
+        if (column !== "id" && column !== "accountDid") {
+          // Exclude the id and accountDid columns
           settings[column] = row[index];
         }
       });