Add video management endpoints and fix LLM extraction pipeline

- Add missing endpoints: fetch-transcript, extract, bulk-extract/pending,
  bulk-transcript/pending, manual restaurant add, restaurant update
- Add OCI HTTP client dependency (jersey3) for GenAI SDK compatibility
- Fix Oracle null parameter ORA-17004 with jdbcType=CLOB in MyBatis
- Fix evaluation IS JSON constraint by storing as valid JSON
- Add @JsonProperty("transcript") for frontend compatibility
- Add Korean-only rule to LLM extraction prompt

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend-java/build.gradle

@@ -43,6 +43,7 @@ dependencies {
     // OCI SDK (GenAI for LLM + Embeddings)
     implementation 'com.oracle.oci.sdk:oci-java-sdk-generativeaiinference:3.49.0'
     implementation 'com.oracle.oci.sdk:oci-java-sdk-common:3.49.0'
+    implementation 'com.oracle.oci.sdk:oci-java-sdk-common-httpclient-jersey3:3.49.0'
 
     // Jackson for JSON
     implementation 'com.fasterxml.jackson.core:jackson-databind'