docs: add all three install methods (curl, npm, brew) across all docs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: bobbyjohnstx

README.md

@@ -48,10 +48,12 @@ A reference [VS Code extension](packages/vscode-extension/) is included. See [do
 ## Quick start
 
 ```bash
-# Install tinycode (stable release)
+# Install tinycode — pick one:
 curl -fsSL https://raw.githubusercontent.com/bobbyjohnstx/tinycode/dev/install.sh | sh
+npx tinycode-ai                          # or: npm install -g tinycode-ai
+brew install bobbyjohnstx/tap/tinycode   # macOS / Linux
 
-# Or install from source
+# Or install from source (development)
 bun install
 
 # Run (TUI mode, against current directory)

SUPPORT.md

@@ -2,6 +2,15 @@
 
 How to get help with tinycode.
 
+## Installation
+
+```bash
+# Pick one:
+curl -fsSL https://raw.githubusercontent.com/bobbyjohnstx/tinycode/dev/install.sh | sh
+npx tinycode-ai                          # or: npm install -g tinycode-ai
+brew install bobbyjohnstx/tap/tinycode   # macOS / Linux
+```
+
 ## Quick Diagnostics
 
 Run this command to check your setup:

docs/use-cases.md

@@ -11,11 +11,10 @@ Run tinycode on your desktop/laptop against local or cloud LLMs.
 ### Setup
 
 ```bash
-# Quick install
+# Install — pick one:
 curl -fsSL https://raw.githubusercontent.com/bobbyjohnstx/tinycode/dev/install.sh | sh
-
-# Or npm
-npx tinycode-ai
+npx tinycode-ai                          # or: npm install -g tinycode-ai
+brew install bobbyjohnstx/tap/tinycode   # macOS / Linux
 
 # Run
 tinycode                    # TUI against current directory

docs/why-tinycode.md

@@ -151,11 +151,10 @@ tinycode inherits its foundation from a mature, proven codebase:
 ## Getting Started
 
 ```bash
-# Quick install
+# Install — pick one:
 curl -fsSL https://raw.githubusercontent.com/bobbyjohnstx/tinycode/dev/install.sh | sh
-
-# Or npm
-npx tinycode-ai
+npx tinycode-ai                          # or: npm install -g tinycode-ai
+brew install bobbyjohnstx/tap/tinycode   # macOS / Linux
 
 # Run
 tinycode                                    # TUI mode