Add all CBS custom modules: KYC, Sanctions, RBI Feed, OpenProject, Mobile Lookup, Charges, Avro schemas

Includes all prior work not yet committed on this branch:
- KYC module (LincPay eKYC: PAN, Aadhaar OTP, GSTIN verification)
- Sanctions screening (UN Security Council consolidated list)
- RBI Feed integration with scheduled jobs
- OpenProject API integration
- Mobile lookup service
- Charge module enhancements (current account support)
- Client family member nominee fields
- Avro schema updates
- Liquibase migrations 0216-0224
- Postman collections for OpenProject, RBI Feeds, Sanctions
- SQL seed scripts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

fineract-provider/src/main/resources/logback-spring.xml

@@ -35,10 +35,25 @@
         </encoder>
     </appender>
 
+    <!-- File appender — logs saved to logs/fineract.log, rotated daily, max 30 days -->
+    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>logs/fineract.log</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <fileNamePattern>logs/fineract.%d{yyyy-MM-dd}.log</fileNamePattern>
+            <maxHistory>30</maxHistory>
+        </rollingPolicy>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %logger{36} : %msg%n</pattern>
+        </encoder>
+    </appender>
+
     <!-- But these three INFO are still handy ;-) just to see when it's up and running -->
     <logger name="org.springframework.boot.web.embedded.tomcat.TomcatWebServer" level="info"/>
     <logger name="org.apache.fineract.ServerApplication" level="info"/>
     <logger name="org.apache.fineract" level="${FINERACT_LOGGING_LEVEL:-INFO}"/>
+    <!-- DEBUG for RBI Feed and OpenProject modules -->
+    <logger name="org.apache.fineract.infrastructure.rbifeed" level="DEBUG"/>
+    <logger name="org.apache.fineract.infrastructure.openproject" level="DEBUG"/>
     <logger name="liquibase" level="warn"/>
 
     <if condition="${jsonLoggingEnabled} == true">
@@ -61,6 +76,7 @@
                  but it's still possible to override this using java -Dlogging.level.root=info -jar fineract-provider.jar, as per https://docs.spring.io/spring-boot/docs/current/reference/html/spring-boot-features.html#boot-features-custom-log-levels -->
             <root level="info">
                 <appender-ref ref="CONSOLE"/>
+                <appender-ref ref="FILE"/>
             </root>
         </else>
     </if>