feat(templates): sync 4 workflow templates from agent-runtimes

Add direct-impl-sonnet@1, plan-review-loop@1, spec-review-loop@1,
test-write-review-loop@1 — present in agent-runtimes but missing here.
These are needed before agent-runtimes drops its baked-in copies and the
CP loads workflow templates exclusively from this CRS repo.

task-templates/workflow/test-write-review-loop@1.yaml

@@ -0,0 +1,68 @@
+name: test-write-review-loop
+version: 1
+description: >
+  MiniMax writes tests from skeletons, Sonnet reviews AND judges in one node
+  (writes its own verdict file — no separate judge node), loop until clean.
+runtime: code-sonnet-tdd-repo
+input:
+  state: needs-tests
+  tags_required: [test-needed]
+  required_artifacts: [test_file]
+output:
+  state: test-write-pending
+scope_budget:
+  wall_clock_seconds_max: 7200 # must be >= iterations_max * per_iteration_seconds_max
+                                # (5 * 1200 = 6000) plus slack
+  iterations_max: 5
+  per_iteration_seconds_max: 1200
+nodes:
+  - id: write-minimax
+    kind: agent
+    role: test-write-review  # M36 v0.6 (bug 69370eda fix): role + model replaces
+                             # the ungrounded `template: minimax-test-writer`
+                             # (a composite that never existed in the catalog).
+    model: minimax-m2
+    runtime_env:
+      # WF-COMP-15: stage agents share one per-item work branch so their work
+      # accumulates across iterations.
+      AGENT_REPO_URL: "git@gitea.oreillyit.nz-ai-enablement:skynet/agent-runtimes-agents.git"
+      AGENT_BRANCH: "task/${item.uuid}"
+  - id: review-sonnet
+    kind: agent
+    role: test-write-review
+    tier: coding
+    depends_on: [write-minimax]
+    runtime_env:
+      AGENT_REPO_URL: "git@gitea.oreillyit.nz-ai-enablement:skynet/agent-runtimes-agents.git"
+      AGENT_BRANCH: "task/${item.uuid}"
+    prompt: |
+      The agent-runtimes project repo is cloned at /workspace/project.
+      Change to that directory before doing any work.
+
+      Review the tests just written for the following task.
+
+      **Title**: ${artifacts.item_title}
+
+      Steps:
+      1. cd /workspace/project
+      2. Review the newly-written test file(s) against the task's spec
+         requirements and the test skeleton they were written from:
+         - Do the tests actually exercise the required behaviour, not just
+           call the code?
+         - Are edge cases and failure modes covered?
+         - Are assertions specific (not just "no exception raised")?
+         - Do the tests pass against the current implementation?
+      3. If the tests are inadequate, fix them directly on this branch —
+         you are both reviewer and judge for this loop
+      4. Write exactly CLEAN or NEEDS_REWORK (nothing else, no trailing
+         punctuation or explanation) to /workspace/.workflow/verdict
+  - id: review-gate
+    kind: script
+    cmd: scripts/workflow/verdict-gate
+    depends_on: [review-sonnet]
+loop:
+  body: [write-minimax, review-sonnet, review-gate]
+  condition_node: review-gate
+  on_max_reached: escalate
+escalation:
+  loop_max_reached: fix-test-fixture-sonnet