feat(webui): add guided setup flows

* feat(channels): add guided setup flows

* test(channels): preserve setup config values

* fix(channels): reflect saved setup state

* refactor(channels): simplify setup state metadata

* fix(channels): harden setup lifecycle

* refactor(channels): centralize setup contracts

* fix(channels): route setup actions through webui shim

* fix(channels): adapt settings for compact screens

* fix(models): preserve default preset display

* feat(models): add curated Codex catalog

* fix(webui): stop attached gateway on interrupt

* fix(webui): simplify apps catalog

* docs(webui): clarify apps and runtime features

* feat(settings): add guided capability setup

* fix(webui): harden setup and managed services

* test: keep managed runtime checks portable

* test: scope POSIX runtime coverage

* fix(webui): simplify file settings

* feat(files): bundle document reading

* fix(webui): harden setup request boundaries

* fix(webui): prevent channel setup status squeeze

* fix(settings): group provider compatibility aliases

* refactor(settings): remove redundant setup surfaces

* fix(webui): harden guided setup lifecycle

* fix(webui): preserve channel setup compatibility

docs/cli-reference.md

@@ -255,6 +255,19 @@ without hand-editing JSON. Enabling may install the support package first.
 Disabling is for channels such as Telegram, Matrix, or Slack; it keeps your
 saved settings and turns the channel off.
 
+The `plugins` command name is retained for compatibility, but these entries are
+nanobot runtime support packages, not the user-invokable tools shown in WebUI
+Apps. They cannot be attached to a chat turn with `@`.
+
+| Feature name | What it enables |
+|---|---|
+| `api` | Dependencies required by the OpenAI-compatible `nanobot serve` process |
+| `azure` | Azure identity support for Azure-hosted models |
+| `bedrock` | AWS Bedrock model provider support |
+| `langfuse` | Langfuse tracing support for OpenAI-compatible providers |
+| `olostep` | Olostep web search provider support |
+| A channel name such as `telegram` or `slack` | The connector package and saved channel enablement |
+
 | Command | Description |
 |---|---|
 | `nanobot plugins list` | Show available channels and optional capabilities |
@@ -265,6 +278,10 @@ saved settings and turns the channel off.
 | `nanobot plugins enable <name> --config <path>` | Update a specific config file |
 | `nanobot plugins disable <channel> --config <path>` | Turn off a channel in a specific config file |
 
+Document and PDF reading are included in the standard installation. The old
+`nanobot plugins enable documents` and `nanobot plugins enable pdf` commands
+remain accepted as no-op compatibility aliases.
+
 ## Provider OAuth
 
 | Command | Description |