ref(org): use shared list-command constants in org list (#273)

## Summary

`org list` was the only list command not using the shared constants from
`list-command.ts` that landed in #262. This switches it over.

## Changes

- Replace inline `limit` and `json` flag definitions with
`buildListLimitFlag("organizations")` and `LIST_JSON_FLAG`
- Add `LIST_BASE_ALIASES` — gives `org list` the missing `-n` shorthand
for `--limit`, consistent with all other list commands
- Remove now-unused `numberParser` import from `command.ts`

No behaviour change beyond the new `-n` alias.

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: BYK

plugins/sentry-cli/skills/sentry-cli/SKILL.md

@@ -110,7 +110,7 @@ Work with Sentry organizations
 List organizations
 
 **Flags:**
-- `--limit <value> - Maximum number of organizations to list - (default: "30")`
+- `-n, --limit <value> - Maximum number of organizations to list - (default: "30")`
 - `--json - Output JSON`
 
 **Examples:**
@@ -605,7 +605,7 @@ List organizations
 List organizations
 
 **Flags:**
-- `--limit <value> - Maximum number of organizations to list - (default: "30")`
+- `-n, --limit <value> - Maximum number of organizations to list - (default: "30")`
 - `--json - Output JSON`
 
 ### Projects

src/commands/org/list.ts

@@ -6,7 +6,7 @@
 
 import type { SentryContext } from "../../context.js";
 import { listOrganizations } from "../../lib/api-client.js";
-import { buildCommand, numberParser } from "../../lib/command.js";
+import { buildCommand } from "../../lib/command.js";
 import { DEFAULT_SENTRY_HOST } from "../../lib/constants.js";
 import { getAllOrgRegions } from "../../lib/db/regions.js";
 import {
@@ -15,6 +15,7 @@ import {
   writeFooter,
   writeJson,
 } from "../../lib/formatters/index.js";
+import { buildListLimitFlag, LIST_JSON_FLAG } from "../../lib/list-command.js";
 
 type ListFlags = {
   readonly limit: number;
@@ -69,19 +70,11 @@ export const listCommand = buildCommand({
   },
   parameters: {
     flags: {
-      limit: {
-        kind: "parsed",
-        parse: numberParser,
-        brief: "Maximum number of organizations to list",
-        // Stricli requires string defaults (raw CLI input); numberParser converts to number
-        default: "30",
-      },
-      json: {
-        kind: "boolean",
-        brief: "Output JSON",
-        default: false,
-      },
+      limit: buildListLimitFlag("organizations"),
+      json: LIST_JSON_FLAG,
     },
+    // Only -n for --limit; no -c since org list has no --cursor flag
+    aliases: { n: "limit" },
   },
   async func(this: SentryContext, flags: ListFlags): Promise<void> {
     const { stdout } = this;