Add Phase 2 citation blocks and fix 'open source' hyphen

Add 40-60 word answer-first citation blocks to 9 more pages:
- Model choice, Agent Profiles, Teams, Admin Panel
- Code Review, Command Palette, Sessions, Supported Shells
- Plans and billing

Also fix 'open-source' -> 'open source' on index.mdx per style guide.

9 Phase 2 pages already had good intros and were left unchanged:
Skills, Rules, Codebase Context, Environments, Secrets,
Integrations, Planning, Code Editor, Managing Cloud Agents.

Co-Authored-By: Oz <oz-agent@warp.dev>

Author: rachaelrenk

src/content/docs/agent-platform/capabilities/agent-profiles-permissions.mdx

@@ -6,6 +6,8 @@ description: >-
 ---
 import { Tabs, TabItem } from '@astrojs/starlight/components';
 
+Agent Profiles let you configure how Warp's agents behave in different situations, including autonomy level, base model, tool access, and command permissions. Create multiple profiles for different workflows, control which commands run automatically, and set MCP server access rules per profile.
+
 ## Agent Profiles
 
 Agent Profiles let you configure how your Agent behaves in different situations. Each profile defines the Agent's autonomy, base models, and tool access. You can create multiple profiles and edit them directly in **Settings** > **Agents** > **Profiles**.

src/content/docs/agent-platform/capabilities/model-choice.mdx

@@ -7,6 +7,8 @@ description: >-
   auto-select the best model).
 ---
 
+Warp lets you choose from a curated set of large language models to power your agents, or let Warp auto-select the best model for each task. Models from OpenAI, Anthropic, Google, and open source providers are available, with configurable reasoning levels and per-profile defaults.
+
 ## Available models
 
 Warp lets you choose from a curated set of Large Language Models (LLMs) to power your Agentic Development Environment.

src/content/docs/code/code-review.mdx

@@ -7,6 +7,8 @@ description: >-
 import DemoVideo from '@components/DemoVideo.astro';
 import VideoEmbed from '@components/VideoEmbed.astro';
 
+The Code Review panel lets you inspect, edit, and manage Git diffs directly inside Warp. Review uncommitted changes or compare branches, attach diffs as context for agents, revert specific hunks, and leave inline comments that agents can act on in real time.
+
 ## Overview
 
 When you are working locally in a Git repository with uncommitted changes, the **Code Review panel** lets you inspect, edit, and manage code changes directly inside Warp. It integrates with Git and Warp's Agents, giving you the ability to:

src/content/docs/getting-started/supported-shells.mdx

@@ -7,6 +7,8 @@ sidebar:
   label: "Supported shells"
 ---
 
+Warp supports bash, zsh, fish, and PowerShell (pwsh) across macOS, Windows, and Linux, loading your login shell by default. You can change the default shell per-session, customize each shell's configuration files and environment variables, and install additional shells like fish or PowerShell on macOS.
+
 ## Warp default shell
 
 Warp tries to load your login shell by default. Currently, Warp supports bash, fish, zsh, and PowerShell (pwsh). If your login shell is set to something else (e.g. Nushell) Warp will show a banner indicating it's not supported and load the default shells listed below:

src/content/docs/knowledge-and-collaboration/admin-panel.mdx

@@ -5,6 +5,8 @@ description: >-
   settings enforced across all team members.
 ---
 
+The Admin Panel gives team administrators centralized control over organization-wide Warp settings, including agent autonomy, privacy controls, billing limits, codebase indexing, and sharing policies. Settings configured in the Admin Panel are enforced across all team members and override individual preferences.
+
 ## What is the Admin Panel?
 
 The [Admin Panel](https://app.warp.dev/admin/) provides team administrators with centralized control over organization-wide settings in Warp. It allows you to manage workspace settings that are enforced across all members of your team.

src/content/docs/knowledge-and-collaboration/teams.mdx

@@ -5,6 +5,8 @@ description: >-
 ---
 import VideoEmbed from '@components/VideoEmbed.astro';
 
+A Warp team is a group of users who collaborate through a shared workspace in Warp Drive. Teams share Workflows, Notebooks, Prompts, Rules, and Environment Variables, with role-based permissions for admins and members. Each Warp user can belong to one team at a time.
+
 ## What is a team?
 
 A team is a group of Warp users who can collaborate on the command line together. Warp teams can share a dedicated workspace in Warp Drive. [Learn about pricing](https://www.warp.dev/pricing) and see our [Pricing FAQ](/support-and-community/plans-and-billing/pricing-faqs/).

src/content/docs/support-and-community/plans-and-billing/index.mdx

@@ -5,7 +5,7 @@ description: >-
   billing settings.
 ---
 
-Warp offers flexible plans designed for individual developers, teams, and enterprises. Learn about pricing, credits, and billing options.
+Warp offers flexible plans for individual developers, teams, and enterprises, with credits powering all agent features. Choose from plan-included credits, add-on credit purchases, automatic reloads, or bring-your-own API keys. Compare plans, manage billing, and track credit usage from your account settings.
 
 * [**Plans & Pricing**](/support-and-community/plans-and-billing/plans-pricing-refunds/) - Compare plans, pricing tiers, and refund policies
 * [**Credits**](/support-and-community/plans-and-billing/credits/) - How credits are used and calculated across AI features

src/content/docs/terminal/command-palette.mdx

@@ -7,6 +7,8 @@ description: >-
 import { Tabs, TabItem } from '@astrojs/starlight/components';
 import VideoEmbed from '@components/VideoEmbed.astro';
 
+The Command Palette is Warp's global search interface for quickly finding and launching Workflows, Notebooks, Prompts, keyboard shortcuts, file searches, settings, and other actions. Open it with a keyboard shortcut, then type or filter results by type to find exactly what you need.
+
 <figure>
 ![Command Palette Panel](../../../assets/terminal/command-palette-panel.png)
 <figcaption>Command Palette Panel.</figcaption>

src/content/docs/terminal/sessions/index.mdx

@@ -7,6 +7,8 @@ description: >-
 import DemoVideo from '@components/DemoVideo.astro';
 import VideoEmbed from '@components/VideoEmbed.astro';
 
+Warp sessions let you navigate between terminal sessions and automatically restore your workspace when you relaunch the app. Session Navigation helps you quickly switch between active sessions, while Session Restoration preserves your windows, tabs, and panes across restarts.
+
 1. [Session Navigation](/terminal/sessions/session-navigation/) enables you to easily navigate to any session in Warp.
 2. [Session Restoration](/terminal/sessions/session-restoration/) automatically restores the window and tabs from your previous session.