chore: migrate ccb-repo images from ghcr.io/sjarmak to ghcr.io/sourcegraph

All 22 ccb-repo base images pushed to ghcr.io/sourcegraph/ org.
Updated 110 files (108 task Dockerfiles, update_task_dockerfiles.py,
push_base_images_ghcr.sh) and regenerated task registry.

Images need visibility toggled to public via GitHub web UI at
github.com/orgs/sourcegraph/packages/container/ccb-repo-*/settings.

Also updates docs/DAYTONA.md to reflect 283/283 tasks Daytona-ready.

Author: sjarmak

base_images/update_task_dockerfiles.py

@@ -213,7 +213,7 @@ def extract_task_specific_lines(lines: list[str], base: dict) -> list[str]:
     return result
 
 
-GHCR_PREFIX = "ghcr.io/sjarmak"
+GHCR_PREFIX = "ghcr.io/sourcegraph"
 
 
 def rewrite_dockerfile(path: Path, base: dict, task_lines: list[str], dry_run: bool) -> bool:

benchmarks/ccb_build/camel-fix-protocol-feat-001/environment/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/sjarmak/ccb-repo-camel-1006f047
+FROM ghcr.io/sourcegraph/ccb-repo-camel-1006f047

benchmarks/ccb_build/camel-fix-protocol-feat-001/environment/Dockerfile.artifact_only

@@ -3,7 +3,7 @@
 # MCP agent deletes source files at runtime via agent startup script.
 # Verifier applies patches from answer.json to /repo_full copy for scoring.
 
-FROM ghcr.io/sjarmak/ccb-repo-camel-1006f047
+FROM ghcr.io/sourcegraph/ccb-repo-camel-1006f047
 # --- artifact_only: backup full repo for verifier scoring ---
 # Source stays in /workspace (readable by baseline agent).
 # MCP agent deletes source files at runtime via agent startup script.

benchmarks/ccb_build/flink-pricing-window-feat-001/environment/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/sjarmak/ccb-repo-flink-0cc95fcc
+FROM ghcr.io/sourcegraph/ccb-repo-flink-0cc95fcc

benchmarks/ccb_build/flink-pricing-window-feat-001/environment/Dockerfile.artifact_only

@@ -3,7 +3,7 @@
 # MCP agent deletes source files at runtime via agent startup script.
 # Verifier applies patches from answer.json to /repo_full copy for scoring.
 
-FROM ghcr.io/sjarmak/ccb-repo-flink-0cc95fcc
+FROM ghcr.io/sourcegraph/ccb-repo-flink-0cc95fcc
 # --- artifact_only: backup full repo for verifier scoring ---
 # Source stays in /workspace (readable by baseline agent).
 # MCP agent deletes source files at runtime via agent startup script.

benchmarks/ccb_build/flipt-dep-refactor-001/environment/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/sjarmak/ccb-repo-flipt-3d5a345f
+FROM ghcr.io/sourcegraph/ccb-repo-flipt-3d5a345f

benchmarks/ccb_build/flipt-dep-refactor-001/environment/Dockerfile.artifact_only

@@ -3,7 +3,7 @@
 # MCP agent deletes source files at runtime via agent startup script.
 # Verifier applies patches from answer.json to /repo_full copy for scoring.
 
-FROM ghcr.io/sjarmak/ccb-repo-flipt-3d5a345f
+FROM ghcr.io/sourcegraph/ccb-repo-flipt-3d5a345f
 # --- artifact_only: backup full repo for verifier scoring ---
 # Source stays in /workspace (readable by baseline agent).
 # MCP agent deletes source files at runtime via agent startup script.

benchmarks/ccb_build/flipt-flagexists-refactor-001/environment/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/sjarmak/ccb-repo-flipt-3d5a345f
+FROM ghcr.io/sourcegraph/ccb-repo-flipt-3d5a345f

benchmarks/ccb_build/flipt-flagexists-refactor-001/environment/Dockerfile.artifact_only

@@ -3,7 +3,7 @@
 # MCP agent deletes source files at runtime via agent startup script.
 # Verifier applies patches from answer.json to /repo_full copy for scoring.
 
-FROM ghcr.io/sjarmak/ccb-repo-flipt-3d5a345f
+FROM ghcr.io/sourcegraph/ccb-repo-flipt-3d5a345f
 # --- artifact_only: backup full repo for verifier scoring ---
 # Source stays in /workspace (readable by baseline agent).
 # MCP agent deletes source files at runtime via agent startup script.

benchmarks/ccb_build/k8s-noschedule-taint-feat-001/environment/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/sjarmak/ccb-repo-k8s-11602f08
+FROM ghcr.io/sourcegraph/ccb-repo-k8s-11602f08