feat(cli): use installation version and document API debugging

- Replace hardcoded "local" version string with InstallationVersion
- Document DESCRIPTION
  Make a request to the running server

USAGE
  opencode api [flags] <operation | method path...>

ARGUMENTS
  operation | method path... stringOpenAPI operation ID, or an HTTP method followed by a path

FLAGS
  --data, -d string      Request body
  --header, -H string    Request header in name:value form
  --param key=value      OpenAPI path or query parameter

GLOBAL FLAGS
  --help, -h                                                          Show help information
  --version, -v                                                       Show version information
  --completions <bash|zsh|fish|sh>                                    Print shell completion script (choices: bash, zsh, fish, sh)
  --log-level <all|trace|debug|info|warn|warning|error|fatal|none>    Sets the minimum log level (choices: all, trace, debug, info, warn, warning, error, fatal, none) server/API debugging command in AGENTS.md

packages/cli/src/index.ts

@@ -10,6 +10,7 @@ import { Runtime } from "./framework/runtime"
 import { Daemon } from "./services/daemon"
 import { Logging } from "@opencode-ai/core/observability/logging"
 import { Updater } from "./services/updater"
+import { InstallationVersion } from "@opencode-ai/core/installation/version"
 
 const LoggingLayer = Logger.layer(Logging.loggers(), { mergeWithExisting: false }).pipe(
   Layer.provide(NodeFileSystem.layer),
@@ -34,7 +35,7 @@ const Handlers = Runtime.handlers(Commands, {
   serve: () => import("./commands/handlers/serve"),
 })
 
-Runtime.run(Commands, Handlers, { version: "local" }).pipe(
+Runtime.run(Commands, Handlers, { version: InstallationVersion }).pipe(
   Effect.annotateLogs({ role: "cli" }),
   Effect.provide(Daemon.defaultLayer),
   Effect.provide(Updater.defaultLayer),