docs: use 'openboot install' consistently across all documentation

Update remaining references from 'openboot --user' to 'openboot install':
- src/docs/personal.md
- src/docs/cli-reference.md (with note about --user alternative)
- src/docs/teams.md (multiple instances)

Both formats are supported and equivalent, but 'install' is more intuitive
and aligns better with familiar package manager patterns (npm install, brew install).

Author: fullstackjam

src/docs/cli-reference.md

@@ -29,14 +29,16 @@ openboot --preset developer
 
 You can still customize in the TUI. To skip the TUI entirely, add `--silent`.
 
-### `openboot --user <username>/<slug>`
+### `openboot install <username>/<slug>`
 
 Install from a custom config hosted on openboot.dev.
 
 ```
-openboot --user sarah/frontend-team
+openboot install sarah/frontend-team
 ```
 
+Alternatively, use the `--user` flag: `openboot --user sarah/frontend-team` (same effect).
+
 For private configs, run `openboot login` first — the CLI sends your auth token automatically.
 
 ### Install Flags

src/docs/personal.md

@@ -108,7 +108,7 @@ openboot snapshot
 Updates your config. At home:
 
 ```bash
-openboot --user alex/my-setup
+openboot install alex/my-setup
 ```
 
 OpenBoot sees `jq` is in your config but not installed. Adds it. Two commands, both machines in sync. Works the other way too — install something at home, snapshot, pull it down at work next Monday.

src/docs/teams.md

@@ -90,12 +90,7 @@ Add the install command to your `CONTRIBUTING.md`:
 
     openboot install acme/frontend
 
-Or install via Homebrew:
-
-    brew tap openbootdotdev/tap && brew install openboot
-    openboot --user acme/frontend
-
-Preview first: `openboot --user acme/frontend --dry-run`
+Preview first: `openboot install acme/frontend --dry-run`
 ```
 
 The URL never changes. When the stack changes, update the config in the [Dashboard](/dashboard). Everyone who runs the command next gets the latest version. No more editing a 47-step Google Doc.
@@ -119,8 +114,8 @@ Each has its own custom script. Backend clones the API monorepo and seeds the lo
 Full-stack dev working across teams? Run both. OpenBoot skips what's already installed.
 
 ```bash
-openboot --user acme/frontend
-openboot --user acme/backend
+openboot install acme/frontend
+openboot install acme/backend
 ```
 
 ## Keeping everyone in sync