v0.2.18 - Clean up configuration system: remove active_config VIEW, database_location field, fix double slash in paths, and ensure database_path reflects actual path used

src/sql_schema.h

@@ -6,7 +6,7 @@
 #define SQL_SCHEMA_H
 
 /* Schema version constant */
-#define EMBEDDED_SCHEMA_VERSION "3"
+#define EMBEDDED_SCHEMA_VERSION "4"
 
 /* Embedded SQL schema as C string literal */
 static const char* const EMBEDDED_SCHEMA_SQL = 
@@ -14,7 +14,7 @@ static const char* const EMBEDDED_SCHEMA_SQL =
 -- SQLite schema for storing Nostr events with JSON tags support\n\
 \n\
 -- Schema version tracking\n\
-PRAGMA user_version = 3;\n\
+PRAGMA user_version = 4;\n\
 \n\
 -- Enable foreign key support\n\
 PRAGMA foreign_keys = ON;\n\
@@ -267,20 +267,6 @@ BEGIN\n\
     VALUES (NEW.key, OLD.value, NEW.value, 'system', 'configuration update');\n\
 END;\n\
 \n\
--- Active Configuration View\n\
-CREATE VIEW active_config AS\n\
-SELECT\n\
-    key,\n\
-    value,\n\
-    description,\n\
-    config_type,\n\
-    data_type,\n\
-    requires_restart,\n\
-    updated_at\n\
-FROM config\n\
-WHERE config_type IN ('system', 'user')\n\
-ORDER BY config_type, key;\n\
-\n\
 -- Runtime Statistics View\n\
 CREATE VIEW runtime_stats AS\n\
 SELECT\n\