feat: add snapshot-based none VCS mode

src/workflow-executor.ts

@@ -25,6 +25,7 @@ import type {
   ExecutorStartOpts,
   ProgressSidecar,
   ReasonixSessionHandle,
+  VcsKind,
 } from "./workflow-types.js";
 import {
   nowIso,
@@ -37,7 +38,17 @@ import {
 // Safety prompt footer (appended to every executor instruction)
 // ---------------------------------------------------------------------------
 
-const SAFETY_CONSTRAINTS = `
+function getSafetyConstraints(vcsKind?: VcsKind): string {
+  let vcsInspectCmd = "";
+  if (vcsKind === "svn") {
+    vcsInspectCmd = "Before exiting, inspect svn status and leave no artifacts outside the allowed scope.";
+  } else if (vcsKind === "none") {
+    vcsInspectCmd = "Before exiting, confirm that no temporary files or paths outside the allowed scope remain.";
+  } else {
+    vcsInspectCmd = "Before exiting, inspect git status --porcelain --untracked-files=all and leave no artifacts outside the allowed scope.";
+  }
+
+  return `
 ## CRITICAL CONSTRAINTS — DO NOT VIOLATE
 
 - DO NOT run git commit, git push, or git reset under any circumstances.
@@ -49,10 +60,11 @@ const SAFETY_CONSTRAINTS = `
 - Put all temporary files in an OS temporary directory outside the repository (for example, one created with mktemp).
 - If you accidentally create a temporary repository file, remove only that artifact before exiting.
 - SQLite cleanup must include the database and its -wal, -shm, and -journal sidecars.
-- Before exiting, inspect git status --porcelain --untracked-files=all (or svn status) and leave no artifacts outside the allowed scope.
+- ${vcsInspectCmd}
 - You may read, edit, and test code, but never commit or push changes.
 - If you encounter an error you cannot resolve, stop and report it clearly.
 `.trimStart();
+}
 
 // ---------------------------------------------------------------------------
 // Progress sidecar helpers
@@ -246,7 +258,7 @@ ${criteriaList}
 After implementation, ensure these commands pass:
 ${cmdsText}
 
-${SAFETY_CONSTRAINTS}`;
+${getSafetyConstraints(opts.vcsKind)}`;
 }
 
 function buildFixPrompt(opts: ExecutorResumeOpts): string {
@@ -269,7 +281,7 @@ ${plan.scope.map((s) => `  - ${s}`).join("\n")}
 After scope cleanup, run:
 ${plan.verificationCommands.map((cmd) => `  ${cmd.join(" ")}`).join("\n")}
 
-${SAFETY_CONSTRAINTS}`;
+${getSafetyConstraints(opts.vcsKind)}`;
   }
 
   return `# Fix Request: ${plan.title}
@@ -288,7 +300,7 @@ ${plan.scope.map((s) => `  - ${s}`).join("\n")}
 After applying fixes, run:
 ${plan.verificationCommands.map((cmd) => `  ${cmd.join(" ")}`).join("\n")}
 
-${SAFETY_CONSTRAINTS}`;
+${getSafetyConstraints(opts.vcsKind)}`;
 }
 
 // ---------------------------------------------------------------------------