docs: address review — add -r/--render, --inline flags, var set schema inference

.cards/cli.md

@@ -68,6 +68,8 @@ ocas render --pipe/-p [options]
 | `--pipe`, `-p` | Read from stdin (`put`/`hash`: raw JSON; `render`: envelope) |
 | `--schema <hash>` | Schema filter for var commands |
 | `--tag <expr>` | Tag/label operations (repeatable) |
+| `--render`, `-r` | Render output inline (equivalent to piping to `ocas render -p`) |
+| `--inline <text>` | Inline text content for `template set` |
 | `--format tree` | Tree display for `walk` |
 
 ## Type Aliases

.cards/render-system.md

@@ -63,4 +63,5 @@ At each level, `resolution *= decay`. When resolution drops below epsilon, refer
 
 - **`ocas render <hash>`** — render a stored node by hash, expanding ocas_ref references
 - **`ocas render -p`** — read a `{ type, value }` envelope from stdin and render it
+- **`ocas <any-command> -r`** — inline render shortcut; any command with `-r` / `--render` automatically pipes its envelope output through the renderer, equivalent to `| ocas render -p`
 - **`renderDirect(type, value, store, options)`** — in-memory render without requiring the data to be stored (used internally for CLI output)

.cards/variable.md

@@ -25,7 +25,7 @@ type Variable = {
 };
 ```
 
-The primary key is `(name, schema)` — the same name can point to nodes of different types.
+The primary key is `(name, schema)` — the same name can point to nodes of different types. When using `var set`, the schema is automatically inferred from the node the hash points to, so you don't need to specify it explicitly.
 
 ## Operations