feat(claude): advisor tool support, per session and as an App Settings default

Claude Code's advisor tool (code.claude.com/docs/en/advisor) lets the session's
main model consult a second, stronger model at decision points: before
committing to an approach, on a recurring error, and before declaring a task
done. Codeman can now start claude sessions with one.

- `advisorModel` field on POST /api/sessions, /api/quick-start and
  /api/ralph-loop/start (fable, opus, sonnet or a full model id in those
  families; haiku cannot advise and is refused). Stored on the session and
  persisted, so respawn, boot restore and reboot restore keep it. Remote and
  docker quick-starts refuse it, as they refuse effort.
- App Settings, Models, "Advisor" segment (Default / Sonnet / Opus / Fable),
  synced as `claudeAdvisorModel`. Run, resume and the Ralph wizard send it.
  Default sends nothing, leaving the CLI's own /advisor choice in charge.
- Carried as the `advisorModel` key in the launch's single --settings JSON,
  merged with ultracode and the statusLine exporter, never the --advisor
  flag: `claude --advisor haiku` exits 1 at launch, which would leave a dead
  pane on every respawn, while the settings key degrades to no advisor. A
  launch without an advisor is byte-identical to before.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/web/routes/session-routes.ts

@@ -1130,6 +1130,7 @@ export function registerSessionRoutes(
       resumeSessionId: validatedResumeId,
       envOverrides: await clampEnvOverridesForOwner(owner, body.envOverrides),
       effort: body.effort,
+      advisorModel: body.advisorModel,
       tmuxHistoryLimit: terminalHistoryConfig.tmuxHistoryLimit,
       remote,
       owner,
@@ -3393,6 +3394,7 @@ export function registerSessionRoutes(
       ompConfig,
       envOverrides,
       effort,
+      advisorModel,
       parentSessionId,
       agentOrigin,
       customModel,
@@ -3440,6 +3442,7 @@ export function registerSessionRoutes(
       if (
         (envOverrides && Object.keys(envOverrides).length > 0) ||
         effort ||
+        advisorModel ||
         modelOverride !== undefined ||
         codexConfig ||
         geminiConfig ||
@@ -3453,7 +3456,7 @@ export function registerSessionRoutes(
       ) {
         return createErrorResponse(
           ApiErrorCode.INVALID_INPUT,
-          'envOverrides, effort, modelOverride, per-CLI config, and custom model endpoints are not supported for remote cases (they do not cross ssh). Configure the remote command via the host command override instead.'
+          'envOverrides, effort, advisorModel, modelOverride, per-CLI config, and custom model endpoints are not supported for remote cases (they do not cross ssh). Configure the remote command via the host command override instead.'
         );
       }
 
@@ -3510,6 +3513,7 @@ export function registerSessionRoutes(
       if (
         (envOverrides && Object.keys(envOverrides).length > 0) ||
         effort ||
+        advisorModel ||
         codexConfig ||
         geminiConfig ||
         antigravityConfig ||
@@ -3522,7 +3526,7 @@ export function registerSessionRoutes(
       ) {
         return createErrorResponse(
           ApiErrorCode.INVALID_INPUT,
-          'envOverrides, effort, per-CLI config, and custom model endpoints are not supported for docker cases (they do not cross into the container). Configure the container via the docker host command override instead.'
+          'envOverrides, effort, advisorModel, per-CLI config, and custom model endpoints are not supported for docker cases (they do not cross into the container). Configure the container via the docker host command override instead.'
         );
       }
 
@@ -3977,6 +3981,7 @@ export function registerSessionRoutes(
       ompConfig: qsResolvedOmpConfig,
       envOverrides: qsCustomModelEnvOverrides,
       effort,
+      advisorModel,
       remote,
       docker,
       resumeSessionId: dockerResumeId,