feat: add SSH config aliases and PostgreSQL extensions

apps/desktop/src/lib/backend/api.ts

@@ -132,6 +132,8 @@ export const listFunctions = forward("listFunctions");
 export const listSequences = forward("listSequences");
 export const listRules = forward("listRules");
 export const listOwners = forward("listOwners");
+export const listExtensions = forward("listExtensions");
+export const listAvailableExtensions = forward("listAvailableExtensions");
 export const prepareSchemaDiff = forward("prepareSchemaDiff");
 export const generateSchemaSyncSql = forward("generateSchemaSyncSql");
 
@@ -240,6 +242,7 @@ export const deleteAiConversation = forward("deleteAiConversation");
 
 // System
 export const listSystemFonts = forward("listSystemFonts");
+export const listSshConfigHosts = forward("listSshConfigHosts");
 
 // SQL File Execution
 export const previewSqlFile = forward("previewSqlFile");

apps/desktop/src/lib/backend/http.ts

@@ -14,6 +14,7 @@ import type {
   IndexInfo,
   ForeignKeyInfo,
   TriggerInfo,
+  ExtensionInfo,
   FunctionInfo,
   SequenceInfo,
   RuleInfo,
@@ -29,6 +30,7 @@ import type {
   SavedSqlFile,
   SavedSqlFolder,
   SavedSqlLibrary,
+  SshConfigHostEntry,
 } from "@/types/database";
 import type { CollectionInfo } from "@/types/database";
 import type { SchemaDiffPreparation, SchemaDiffPreparationOptions, TableDiff, FunctionDiff, SequenceDiff, RuleDiff, OwnerDiff } from "@/lib/schema/schemaDiff";
@@ -242,6 +244,10 @@ export async function listSystemFonts(): Promise<string[]> {
   return get("/api/system/fonts");
 }
 
+export async function listSshConfigHosts(): Promise<SshConfigHostEntry[]> {
+  return get("/api/ssh/config-hosts");
+}
+
 export async function listPlugins(): Promise<InstalledPlugin[]> {
   return get("/api/plugins");
 }
@@ -605,6 +611,14 @@ export async function listOwners(connectionId: string, database: string, schema:
   return get(`/api/schema/owners?${qs({ connection_id: connectionId, database, schema })}`);
 }
 
+export async function listExtensions(connectionId: string, database: string, schema: string): Promise<ExtensionInfo[]> {
+  return get(`/api/schema/extensions?${qs({ connection_id: connectionId, database, schema })}`);
+}
+
+export async function listAvailableExtensions(connectionId: string, database: string): Promise<ExtensionInfo[]> {
+  return get(`/api/schema/available-extensions?${qs({ connection_id: connectionId, database })}`);
+}
+
 // ---------------------------------------------------------------------------
 // Query
 // ---------------------------------------------------------------------------

apps/desktop/src/lib/backend/tauri.ts

@@ -20,6 +20,7 @@ import type {
   SequenceInfo,
   RuleInfo,
   OwnerInfo,
+  ExtensionInfo,
   QueryResult,
   SqlReferenceAnalysis,
   DatabaseType,
@@ -30,6 +31,7 @@ import type {
   SavedSqlFile,
   SavedSqlFolder,
   SavedSqlLibrary,
+  SshConfigHostEntry,
 } from "@/types/database";
 import type { CollectionInfo } from "@/types/database";
 import type { SidebarObjectKind } from "@/lib/database/databaseObjectCapabilities";
@@ -495,6 +497,10 @@ export async function listSystemFonts(): Promise<string[]> {
   return invoke("list_system_fonts");
 }
 
+export async function listSshConfigHosts(): Promise<SshConfigHostEntry[]> {
+  return invoke("list_ssh_config_hosts");
+}
+
 export async function pendingOpenSqlFiles(): Promise<string[]> {
   return invoke("pending_open_sql_files");
 }
@@ -990,6 +996,14 @@ export async function listOwners(connectionId: string, database: string, schema:
   return invoke("list_owners", { connectionId, database, schema });
 }
 
+export async function listExtensions(connectionId: string, database: string, schema: string): Promise<ExtensionInfo[]> {
+  return invoke("list_extensions", { connectionId, database, schema });
+}
+
+export async function listAvailableExtensions(connectionId: string, database: string): Promise<ExtensionInfo[]> {
+  return invoke("list_available_extensions", { connectionId, database });
+}
+
 export async function saveConnections(configs: ConnectionConfig[]): Promise<void> {
   return invoke("save_connections", { configs });
 }

apps/desktop/src/lib/database/dbAdminSql.ts

@@ -122,3 +122,24 @@ function quotePostgresIdentifier(value: string): string {
 function quoteSqlLiteral(value: string): string {
   return `'${value.replace(/'/g, "''")}'`;
 }
+
+export function buildCreateExtensionSql(name: string, schema?: string | null): string {
+  const extName = quotePostgresIdentifier(name);
+  if (schema) {
+    return `CREATE EXTENSION ${extName} WITH SCHEMA ${quotePostgresIdentifier(schema)};`;
+  }
+  return `CREATE EXTENSION ${extName};`;
+}
+
+export function buildDropExtensionSql(name: string, cascade = false): string {
+  const extName = quotePostgresIdentifier(name);
+  return cascade ? `DROP EXTENSION ${extName} CASCADE;` : `DROP EXTENSION ${extName};`;
+}
+
+export function buildListAvailableExtensionsSql(schema?: string | null): string {
+  // pg_available_extensions shows extensions available for installation
+  if (schema) {
+    return `SELECT name, default_version, comment FROM pg_catalog.pg_available_extensions WHERE installed_version IS NULL ORDER BY name`;
+  }
+  return `SELECT name, default_version, comment FROM pg_catalog.pg_available_extensions WHERE installed_version IS NULL ORDER BY name`;
+}