Merge master into PR #157 (session manager polish)

Resolutions (sse-events.ts / constants.js / app.js): unions of the docker/
multi-user event registrations from master with the session-order/pin events
from this branch.

Additions on top of the merge:
- POST /api/sessions/:id/pin now falls back to the persisted store record when
  no live session exists: COD-142 deliberately preserves pinned records after
  kill (and cleanupStaleSessions skips them), so without this a pinned-then-
  killed session could never be unpinned. Owner-scoped in multi-user mode.
- SessionOrderUpdateSchema bounds (id <= 100 chars, <= 500 entries) so a buggy
  client can't persist megabytes into state.json; empty strings still flow to
  normalizeSessionOrder which drops them.
- Route tests for the persisted-record pin fallback.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/types/api.ts

@@ -37,6 +37,16 @@ export enum ApiErrorCode {
   RATE_LIMITED = 'RATE_LIMITED',
   /** Operation could not be completed (well-formed but unprocessable) */
   OPERATION_FAILED = 'OPERATION_FAILED',
+  /** Authenticated but not permitted (e.g. non-admin hitting an admin route) */
+  FORBIDDEN = 'FORBIDDEN',
+  /** User must change their password before any other action (multi-user) */
+  PASSWORD_CHANGE_REQUIRED = 'PASSWORD_CHANGE_REQUIRED',
+  /** A user with this name already exists (multi-user) */
+  USER_EXISTS = 'USER_EXISTS',
+  /** No user with this name (multi-user) */
+  USER_NOT_FOUND = 'USER_NOT_FOUND',
+  /** Refusing to demote/disable/delete the last enabled admin (multi-user) */
+  LAST_ADMIN = 'LAST_ADMIN',
   /** Internal server error */
   INTERNAL_ERROR = 'INTERNAL_ERROR',
 }
@@ -53,6 +63,11 @@ const ErrorMessages: Record<ApiErrorCode, string> = {
   [ApiErrorCode.ALREADY_EXISTS]: 'Resource already exists',
   [ApiErrorCode.RATE_LIMITED]: 'Too many requests',
   [ApiErrorCode.OPERATION_FAILED]: 'The operation failed',
+  [ApiErrorCode.FORBIDDEN]: 'You do not have permission to perform this action',
+  [ApiErrorCode.PASSWORD_CHANGE_REQUIRED]: 'You must change your password before continuing',
+  [ApiErrorCode.USER_EXISTS]: 'A user with that name already exists',
+  [ApiErrorCode.USER_NOT_FOUND]: 'No such user',
+  [ApiErrorCode.LAST_ADMIN]: 'Cannot remove the last enabled admin',
   [ApiErrorCode.INTERNAL_ERROR]: 'An internal error occurred',
 };
 
@@ -69,6 +84,11 @@ const ErrorStatus: Record<ApiErrorCode, number> = {
   [ApiErrorCode.CONFLICT]: 409,
   [ApiErrorCode.ALREADY_EXISTS]: 409,
   [ApiErrorCode.OPERATION_FAILED]: 422,
+  [ApiErrorCode.FORBIDDEN]: 403,
+  [ApiErrorCode.PASSWORD_CHANGE_REQUIRED]: 403,
+  [ApiErrorCode.USER_EXISTS]: 409,
+  [ApiErrorCode.USER_NOT_FOUND]: 404,
+  [ApiErrorCode.LAST_ADMIN]: 409,
   [ApiErrorCode.RATE_LIMITED]: 429,
   [ApiErrorCode.INTERNAL_ERROR]: 500,
 };
@@ -124,7 +144,7 @@ export interface CaseInfo {
   /** Whether CLAUDE.md exists */
   hasClaudeMd?: boolean;
   /** Case storage/execution location */
-  location?: 'local' | 'linked-local' | 'remote';
+  location?: 'local' | 'linked-local' | 'remote' | 'docker';
   /** Whether this is a linked local folder */
   linked?: boolean;
   /** Remote case metadata for display and session creation */
@@ -134,6 +154,14 @@ export interface CaseInfo {
     username: string;
     path: string;
   };
+  /** Docker case metadata for display and session creation */
+  docker?: {
+    hostId: string;
+    container: string;
+    image?: string;
+    path: string;
+    network?: string;
+  };
 }
 
 // ========== Error Handling Utilities ==========

src/types/cron.ts

@@ -36,6 +36,8 @@ export type ConcurrencyPolicy = 'warn_only' | 'skip_if_same_agent_running';
 export interface CronJob {
   id: string;
   name: string;
+  /** Owning username in multi-user mode; the job launches as this user. Undefined in single-user. */
+  owner?: string;
   /** Reuses Codeman's existing session modes; 'shell' covers Terminal/custom. */
   agentType: SessionMode;
   workingDir: string;

src/types/index.ts

@@ -69,3 +69,4 @@ export * from './orchestrator.js';
 export * from './update.js';
 export * from './workflow-run.js';
 export * from './search.js';
+export * from './user.js';

src/types/session.ts

@@ -9,7 +9,7 @@
  * - SessionOutput — captured stdout/stderr/exitCode
  * - SessionStatus — 'idle' | 'busy' | 'stopped' | 'error'
  * - SessionMode — 'claude' | 'shell' | 'opencode' | 'codex' | 'gemini' (which CLI backend)
- * - ClaudeMode — CLI permission mode ('dangerously-skip-permissions' | 'normal' | 'allowedTools')
+ * - ClaudeMode — CLI permission mode ('dangerously-skip-permissions' | 'auto' | 'normal' | 'allowedTools')
  * - SessionColor — visual differentiation color
  * - OpenCodeConfig — OpenCode-specific settings (model, autoAllowTools, continueSession)
  * - CodexConfig — Codex (OpenAI CLI)-specific settings (model, resumeSessionId)
@@ -35,10 +35,11 @@ export type SessionStatus = 'idle' | 'busy' | 'stopped' | 'error';
 /**
  * Claude CLI startup permission mode.
  * - `'dangerously-skip-permissions'`: Bypass all permission prompts (default)
+ * - `'auto'`: Anthropic's classifier-guarded low-prompt mode (`--permission-mode auto`)
  * - `'normal'`: Standard mode with permission prompts
  * - `'allowedTools'`: Only allow specific tools (requires allowedTools list)
  */
-export type ClaudeMode = 'dangerously-skip-permissions' | 'normal' | 'allowedTools';
+export type ClaudeMode = 'dangerously-skip-permissions' | 'auto' | 'normal' | 'allowedTools';
 
 /** Session mode: which CLI backend a session runs */
 export type SessionMode = 'claude' | 'shell' | 'opencode' | 'codex' | 'gemini';
@@ -84,6 +85,8 @@ export interface RemoteHost extends RemoteSshOptions {
 export interface RemoteCase {
   name: string;
   type: 'remote';
+  /** Owning username in multi-user mode; absent = legacy/unassigned (admin-only). */
+  owner?: string;
   hostId: string;
   remotePath: string;
 }
@@ -96,6 +99,163 @@ export interface SessionRemote extends RemoteSshOptions {
   port?: number;
   remotePath: string;
   commands?: Partial<Record<RemoteCommandMode, string>>;
+  /**
+   * COD-105 — whether THIS Codeman created the remote tmux session.
+   *
+   * - `true` (default for COD-104 launched sessions): we own the remote session;
+   *   an explicit "kill" may propagate a remote `tmux kill-session`.
+   * - `false` (discovered + attached an existing remote session another Codeman
+   *   created): closing the local tab must DETACH only — we must NEVER issue a
+   *   remote `kill-session`, or we'd nuke work the remote's own Codeman (or
+   *   another instance) still relies on. See `killSession()` gate.
+   *
+   * Absent is treated as owned (legacy/COD-104 sessions persisted before this
+   * field existed were all launched by us).
+   */
+  owned?: boolean;
+  /**
+   * COD-105 — for a NON-owned (discovered + attached) session, the EXISTING
+   * remote tmux session name to `attach -t` (e.g. `codeman-disco1`). It differs
+   * from this Codeman's deterministic `codeman-<id>` name because the remote
+   * session was created elsewhere. Only meaningful when `owned === false`.
+   */
+  remoteSessionName?: string;
+}
+
+/**
+ * COD-105 — a `codeman-*` tmux session discovered on a remote host's
+ * `tmux -L codeman` socket (may have been created by the remote's own Codeman,
+ * another instance, or this one). Returned by `listRemoteCodemanSessions`.
+ */
+export interface RemoteSessionInfo {
+  /** tmux session name (always starts `codeman-`). */
+  name: string;
+  /** Whether at least one client is currently attached to the remote session. */
+  attached: boolean;
+  /** COD-106 — number of clients attached (tmux `session_attached`); >1 = shared. */
+  attachedClients: number;
+  /** tmux `session_created` epoch seconds. */
+  created: number;
+  /** Number of windows in the remote session. */
+  windows: number;
+}
+
+// ========== Docker cases (COD-Docker) ==========
+//
+// Docker mode is a LOCATION OVERLAY on cases (never a 6th SessionMode), the exact
+// analog of the remote-SSH feature above: instead of a local tmux pane running
+// `ssh host` into a durable remote tmux server, a local tmux pane runs
+// `docker exec -it` into a durable in-container tmux server. The container is
+// scoped to the CASE (not the session), so multiple sessions can `docker exec`
+// into the same long-lived container. See `docs/docker-cases-plan.md`.
+
+/** Which CLI backends a Docker case can run (same set as remote). */
+export type DockerCommandMode = Extract<SessionMode, 'shell' | 'claude' | 'opencode' | 'codex' | 'gemini'>;
+
+/** Container engine. Docker and Podman differ in the uid/userns + host-gateway alias. */
+export type DockerEngine = 'docker' | 'podman';
+
+/**
+ * Container network mode. `host` and any inbound `-p` publish are deliberately
+ * unrepresentable (never in this union, never emitted by the flag builder).
+ * - `bridge`: own netns, NAT egress, no inbound (default — every API CLI needs egress)
+ * - `none`: fully offline sandbox (breaks API CLIs; reserved for `shell`)
+ * - `custom`: a user-defined bridge `codeman-net-<slug>` (future egress-allowlist chokepoint)
+ */
+export type DockerNetworkMode = 'bridge' | 'none' | 'custom';
+
+/** Per-container resource caps. Advisory under non-delegated rootless (see `capsEnforced`). */
+export interface DockerResourceLimits {
+  /** e.g. '4g' -> --memory 4g --memory-swap 4g (swap==memory: a real OOM cap) */
+  memory?: string;
+  /** e.g. '2' -> --cpus 2 */
+  cpus?: string;
+  /** e.g. 512 -> --pids-limit 512 (fork-bomb guard) */
+  pidsLimit?: number;
+  /** e.g. '4096:8192' -> --ulimit nofile=4096:8192 */
+  nofile?: string;
+  /** e.g. '256m' -> --shm-size (only when a tool needs /dev/shm) */
+  shmSize?: string;
+}
+
+/** A reusable Docker engine/image/network/resource profile (mirror of RemoteHost). */
+export interface DockerHost {
+  id: string;
+  label: string;
+  /** Engine; when absent the availability probe resolves it (docker, else podman). */
+  engine?: DockerEngine;
+  /** Base image ref (built locally by scripts/build-agent-image.mjs, e.g. codeman/agent:base). */
+  image: string;
+  /** Advanced: remote daemon (-H ssh://user@host or a DOCKER_HOST value). */
+  daemonHost?: string;
+  /** Advanced: docker `--context` name. */
+  context?: string;
+  /** Network mode (default 'bridge'). */
+  network?: DockerNetworkMode;
+  /** Custom bridge name when network === 'custom'. */
+  networkName?: string;
+  resources?: DockerResourceLimits;
+  /** GPU allocation, e.g. 'all' / '1' / 'device=0,1' -> `--gpus <value>` (needs the NVIDIA container toolkit). */
+  gpus?: string;
+  /** true (default) = convenient: bind-mount host cred dirs RW. false = sealed (blocks full-image export). */
+  mountCredentials?: boolean;
+  /** true (default) = wire in-container hooks (host-gateway callback + workspace scaffold). */
+  hooksEnabled?: boolean;
+  /** true (default) = a relaunch resumes the last conversation from the bind-mounted transcript. */
+  resumeOnStart?: boolean;
+  /** Per-mode command overrides (mirror RemoteHost.commands). */
+  commands?: Partial<Record<DockerCommandMode, string>>;
+  /** Escape hatch: extra `docker create` args (validated like extraSshOptions). */
+  extraCreateArgs?: string[];
+  /** Escape hatch: extra `docker exec` args. */
+  extraExecArgs?: string[];
+}
+
+/** A case linked to a Docker container (mirror of RemoteCase). */
+export interface DockerCase {
+  name: string;
+  type: 'docker';
+  /** Owning username in multi-user mode; absent = legacy/unassigned (admin-only). */
+  owner?: string;
+  hostId: string;
+  /** Absolute HOST directory: the bind-mount source AND Session.workingDir (real host bytes). */
+  hostWorkspacePath: string;
+  /** Container path (default = hostWorkspacePath: mirror -> transcript projHash correlates). */
+  containerWorkdir?: string;
+  /** Container name (default codeman-case-<slug>). */
+  container?: string;
+  /** Last captured Claude conversation id, replayed via --resume on a fresh launch. */
+  lastClaudeSessionId?: string;
+}
+
+/**
+ * Flattened Docker execution metadata carried on a live session (mirror of
+ * SessionRemote). Round-trips through MuxSession/SessionState/mux-sessions.json.
+ */
+export interface SessionDocker {
+  hostId: string;
+  label: string;
+  engine: DockerEngine;
+  image: string;
+  /** Per-CASE container name (shared by all sessions of the case). */
+  containerName: string;
+  hostWorkspacePath: string;
+  containerWorkdir: string;
+  network: DockerNetworkMode;
+  networkName?: string;
+  resources?: DockerResourceLimits;
+  /** GPU allocation ('all' / '1' / 'device=0,1'). */
+  gpus?: string;
+  mountCredentials: boolean;
+  hooksEnabled: boolean;
+  resumeOnStart: boolean;
+  daemonHost?: string;
+  context?: string;
+  commands?: Partial<Record<DockerCommandMode, string>>;
+  extraCreateArgs?: string[];
+  extraExecArgs?: string[];
+  /** Stable hash of the drift-relevant create args (recreate-on-drift detection). */
+  configHash?: string;
 }
 
 /**
@@ -217,6 +377,10 @@ export interface SessionState {
   workingDir: string;
   /** Remote execution metadata, present when this session runs over SSH through local tmux */
   remote?: SessionRemote;
+  /** Docker execution metadata, present when this session runs inside a container via local tmux + docker exec */
+  docker?: SessionDocker;
+  /** Owning username in multi-user mode; undefined in single-user (ignored when the flag is off) */
+  owner?: string;
   /** ID of currently assigned task, null if none */
   currentTaskId: string | null;
   /** Timestamp when session was created */

src/types/user.ts

@@ -0,0 +1,64 @@
+/**
+ * @fileoverview Multi-user mode types (opt-in `--multiuser`).
+ *
+ * Users live in `~/.codeman/users.json` (via `dataPath`, mode 0600). Each record
+ * carries a scrypt password hash with its own parameters so hashing cost can be
+ * raised later and old records rehashed on next login. `AuthUser` is the
+ * request-scoped identity decorated onto Fastify requests; in SINGLE-user mode a
+ * synthetic `{ username: 'admin', role: 'admin' }` is used so downstream code has
+ * one code path. See `src/user-store.ts` and `docs/multi-user-plan.md`.
+ */
+
+export type UserRole = 'admin' | 'user';
+
+/** Per-record scrypt parameters + salt/hash (all hex). */
+export interface PasswordHash {
+  algo: 'scrypt';
+  N: number;
+  r: number;
+  p: number;
+  salt: string;
+  hash: string;
+}
+
+export interface UserRecord {
+  /** Canonical lowercase slug; also the user's folder name under USER_SPACES_DIR. */
+  username: string;
+  role: UserRole;
+  password: PasswordHash;
+  /** Disabled accounts fail auth closed but keep their space on disk. */
+  disabled?: boolean;
+  /** Set by an admin reset; gates all API access until the user changes it. */
+  mustChangePassword?: boolean;
+  /**
+   * Permission-mode grant (section 6.3). When false (the default for new users),
+   * the user's Claude sessions are forced to `--permission-mode auto`, shell mode
+   * and cron `launchCommand` are refused, and other CLIs' bypass flags are dropped.
+   */
+  canBypassPermissions?: boolean;
+  createdAt: number;
+  lastLoginAt?: number;
+}
+
+/** On-disk shape of `users.json`. */
+export interface UsersFile {
+  version: 1;
+  users: UserRecord[];
+}
+
+/** Request-scoped identity (decorated as `req.authUser`). */
+export interface AuthUser {
+  username: string;
+  role: UserRole;
+}
+
+/** Admin-facing projection of a user: never carries the password hash. */
+export interface PublicUser {
+  username: string;
+  role: UserRole;
+  disabled: boolean;
+  mustChangePassword: boolean;
+  canBypassPermissions: boolean;
+  createdAt: number;
+  lastLoginAt?: number;
+}