feat: revise sandbox usability around semantic policy and LPAC process trees

Rewrite the specification and design vocabulary around User Sandbox Configuration, Environment Resolution, Executable Approval, Effective Sandbox Policy, and Windows Enforcement. Move the Internal Tool catalog to the design without treating its count as a requirement, and update README, implementation planning, traceability, audit history, prompts, and the Python skill.

Introduce schema_version 1 profiles, workspaces, mounts, executable aliases, network modes, and resource presets. Add local override merging, resolution and approval stores with atomic user-only persistence, fail-closed fingerprints, localized diagnostics, and executable/sandbox management CLI commands.

Change Windows execution to LPAC entry approval with inherited descendant confinement. Separate read and execute ACLs, preserve protected OS DACLs, apply Job process/memory/timeout limits to the tree, enforce WFP network modes, prevent credential environment inheritance, disable out-of-tree MSBuild reuse, and harden transactional ACL/recovery cleanup.

Isolate planning prompts from execution instructions, reject split coding plans that cannot satisfy task-scoped evidence, preserve configured thinking, and prevent optional task_update failures from corrupting completion checks.

Add and update configuration, resolution, approval, LPAC, descendant, readonly/development, Registry/COM, WFP, recovery, .NET/Python/PowerShell process-tree, and Operational E2E coverage. Publish reproducible bundles while preserving deployment-local configuration, prompts, skills, logs, state, approvals, and resolutions.

1 files changed, 25 insertions, 6 deletions

diff --git a/src/Agent.App/Configuration/AgentConfiguration.cs b/src/Agent.App/Configuration/AgentConfiguration.cs
index c5f720b..b2f94a7 100644
--- a/src/Agent.App/Configuration/AgentConfiguration.cs
+++ b/src/Agent.App/Configuration/AgentConfiguration.cs
@@ -64,13 +64,32 @@ public sealed class OllamaGenerationOptions
 }
 
 public sealed class PlannerOptions { public int MaxTasks { get; set; } = 32; }
-public sealed class SandboxOptions { public FilesystemOptions Filesystem { get; set; } = new(); public ProcessOptions Process { get; set; } = new(); public NetworkOptions Network { get; set; } = new(); public ResourceOptions Resources { get; set; } = new(); }
-public sealed class FilesystemOptions { public List<string> Read { get; set; } = []; public List<string> Write { get; set; } = []; public List<string> Execute { get; set; } = []; public List<string> Delete { get; set; } = []; }
-public sealed class ProcessOptions { public bool AllowShell { get; set; } = true; public List<ExecutableApproval> Approvals { get; set; } = []; public int MaxProcesses { get; set; } = 16; }
-public sealed class ExecutableApproval { public string Path { get; set; } = string.Empty; public string Sha256 { get; set; } = string.Empty; }
-public sealed class NetworkOptions { public string Mode { get; set; } = "deny"; public List<NetworkAllowance> Allow { get; set; } = []; }
+public sealed class SandboxOptions
+{
+    public string Profile { get; set; } = "readonly";
+    public List<string> Workspaces { get; set; } = [];
+    public List<MountOptions> Mounts { get; set; } = [];
+    public ExecutionOptions Execution { get; set; } = new();
+    public NetworkOptions Network { get; set; } = new();
+    public ResourceOptions Resources { get; set; } = new();
+}
+public sealed class MountOptions { public string Path { get; set; } = string.Empty; public string Access { get; set; } = "read_only"; }
+public sealed class ExecutionOptions { public List<string> Executables { get; set; } = []; public List<string> Shells { get; set; } = []; }
+public sealed class NetworkOptions
+{
+    public string Access { get; set; } = "none";
+    public List<LocalEndpointOptions> LocalEndpoints { get; set; } = [];
+    public List<NetworkAllowance> RestrictedEndpoints { get; set; } = [];
+}
+public sealed class LocalEndpointOptions { public int Port { get; set; } }
 public sealed class NetworkAllowance { public string Host { get; set; } = string.Empty; public List<int> Ports { get; set; } = []; }
-public sealed class ResourceOptions { public int MemoryMb { get; set; } = 4096; public int ProcessTimeoutSeconds { get; set; } = 1800; }
+public sealed class ResourceOptions
+{
+    public string Profile { get; set; } = "normal";
+    public int? MemoryMb { get; set; }
+    public int? ProcessLimit { get; set; }
+    public int? ExecutionTimeoutSeconds { get; set; }
+}
 public sealed class FileEditOptions { public int MemoryBackupLimitMb { get; set; } = 16; }
 public sealed class LimitOptions { public long WholeReadBytes { get; set; } = 1024 * 1024; public int SearchMaxResults { get; set; } = 1000; public int TailMaxLines { get; set; } = 10000; public double ContextSummaryRatio { get; set; } = 0.8; }
 public sealed class LocalizationOptions { public string Directory { get; set; } = "config/locales"; public string Fallback { get; set; } = "en"; }