docs: type the demo commands with long flag names

AGENTS.md

@@ -223,6 +223,8 @@ Things worth knowing before changing them:
 - Both tapes source `demo/common.tape`, so the two recordings cannot drift apart in size or colour. The dimensions there are twice what the README displays, because GitHub renders the image at about half that width and the spare pixels are what keep the text sharp.
 - A tape waits for the shell prompt to come back rather than for a phrase in the output, since the phrase can scroll off screen before the command exits. When a tape ends, VHS kills whatever is still running, which for this tool means a half-installed release left behind on the cluster.
 - The transfer needs to be worth watching. Uniform file sizes keep the progress bar moving at a steady rate, and the destination is emptied first, since rsync copies only what differs and a second run against a full destination is over before the bar moves.
+- The typed command is spread over continuation lines, one group of flags per line, and the recording is as tall as the success run needs to keep that command and the whole run on one screen.
+  The failure run is longer and scrolls, by design: its last screen is the explanation, which is what that recording is for.
 - Both tapes pin a strategy. Left alone the ladder picks the mount strategy, which copies locally in a second or two and is too fast to see. The failure tape pins mount for the opposite reason, to keep that recording short, and doing so assumes one pod can mount both claims. On a cluster that provisions them in different zones the strategy declines instead, and the recording shows the wrong failure.
 - The workflow runs the same steps as the local task, from the same tapes. Only the recorder differs. CI runs VHS from its own image, whose fonts include the colour emoji this tool prints and which a bare runner may not have.
 - The recorder honours a setting only where nothing precedes it, and otherwise warns and carries on with its own defaults, so a tape can record at the wrong size and colours while reporting success. The settings therefore come first in every tape, anything that is not a setting comes after them, and `task demo:record` fails on that warning rather than leaving it to be noticed.

demo/common.tape

@@ -24,7 +24,7 @@ Set Shell "bash"
 Set FontFamily "JetBrains Mono SemiBold"
 Set FontSize 36
 Set Width 2800
-Set Height 1240
+Set Height 1650
 Set Padding 48
 Set Margin 32
 Set MarginFill "#0d1117"

demo/failure.tape

@@ -9,16 +9,22 @@ Output img/demo-failure.gif
 
 # A prompt of one plain character. An escape sequence in it would be counted as
 # visible width by the shell's line editor, which then wraps the typed command
-# in the wrong column. The binary comes from the PATH that task demo:record sets.
+# in the wrong column. The continuation prompt is two spaces, so the command
+# reads as it would in the docs, one group of flags per line. The binary comes
+# from the PATH that task demo:record sets.
 Hide
-Type `PS1='❯ '`
+Type `PS1='❯ ' PS2='  '`
 Enter
 Type "clear"
 Enter
 Show
 
 Sleep 1s
-Type "pv-migrate -n demo --source app-data -N demo --dest app-data-new -s mount --rsync-extra-args=--nope"
+Type "pv-migrate --source-namespace demo --source app-data \"
+Enter
+Type "--dest-namespace demo --dest app-data-new \"
+Enter
+Type "--strategies mount --rsync-extra-args=--nope"
 Sleep 500ms
 Enter
 

demo/success.tape

@@ -8,16 +8,22 @@ Output img/demo.gif
 
 # A prompt of one plain character. An escape sequence in it would be counted as
 # visible width by the shell's line editor, which then wraps the typed command
-# in the wrong column. The binary comes from the PATH that task demo:record sets.
+# in the wrong column. The continuation prompt is two spaces, so the command
+# reads as it would in the docs, one group of flags per line. The binary comes
+# from the PATH that task demo:record sets.
 Hide
-Type `PS1='❯ '`
+Type `PS1='❯ ' PS2='  '`
 Enter
 Type "clear"
 Enter
 Show
 
 Sleep 1s
-Type "pv-migrate -n demo --source app-data -N demo --dest app-data-new -s clusterip"
+Type "pv-migrate --source-namespace demo --source app-data \"
+Enter
+Type "--dest-namespace demo --dest app-data-new \"
+Enter
+Type "--strategies clusterip"
 Sleep 500ms
 Enter