feat: migrate missing harnesses, templates, and workflows from agent-runtimes

Brings the framework CRS repo up to date with all content that was
living in agent-runtimes (local-dev fallback) but hadn't been promoted.

New composites: feature-delivery-loop, integration-direct, scaffolding-repo,
sonnet-impl-narrow, sonnet-manager, test-writing-repo

New contexts: integration/v1, scaffolding/v1, sonnet-manager/v1, z-ai/v1,
airouter/v1/bin (anthropic-compat-wrapper.sh), cp-harness/v1/init.sh

New task-templates: sonnet-integrator.yaml, workflow/* (17 typed workflow
task templates for the Epic 1 pipeline)

Updated: agent-repo/v1/finalize.sh — adds AR-38/F97 empty-deliverable audit
(SKIP_BRANCH_PUSH support, boilerplate-path filtering, ci_metadata.json flag)

Also adds MEMORY.md index and memory/ topic files for the framework repo.

task-templates/workflow/test-write-minimax@2.yaml

@@ -0,0 +1,18 @@
+name: test-write-minimax
+version: 2
+description: Write tests from skeletons using MiniMax test-writer
+runtime: minimax-test-writer
+input:
+  state: needs-tests
+  tags_required: [test-needed]
+  required_artifacts: [test_file]
+output:
+  state: test-write-pending
+scope_budget:
+  files_modified_max: 1
+  lines_diff_max: 150
+  wall_clock_seconds_max: 1200
+nodes:
+  - id: agent
+    kind: agent
+    template: minimax-test-writer