Add six Graphite plugins for the Stream Deck +

[jonasthim]

Six plugins for the Stream Deck +, built as one family in a shared design
language (near-black ground, one accent per plugin, words rather than icons
for anything that has gone wrong):

Plugin	id	What it does
Volume Deck Plus	com_jonasthim_VolumeStreamDeckPlus	every app that makes a sound becomes a channel on the dials: turn for volume, press to mute, hold to solo
Spotify Deck	com_jonasthim_SpotifyDeck	now playing across the touch strip — art, marqueeing title and artist, scrub-then-commit seek, transport keys (MPRIS, no account needed)
Deck Navigation	com_jonasthim_DeckNavigation	go to a page, walk back, jump home; composes onto other plugins' keys through multi-action stacking
Home Assistant Deck	com_jonasthim_HomeAssistantDeck	a room fills the dials with its lights and switches; rooms come from HA areas or a curated dashboard tab (websocket API, long-lived token)
Claude Code Deck	com_jonasthim_ClaudeCodeDeck	which Claude Code session is waiting on you, working, or done; press to raise its terminal (reads local transcripts only)
System Deck	com_jonasthim_SystemDeck	lock, sleep, log out, restart, shut down — the irreversible ones only fire after a deliberate hold — plus keep-awake and app launchers (logind)

Each has been used on real hardware (Stream Deck +, app 1.5.0-beta.15), carries
manifest.json, attribution.json, a thumbnail, a README and GPL-3.0, and
ships with a deck-free test suite.

One thing worth flagging: the six entries share a repository URL

The plugins live in one repository, and each release is a tag whose commit
tree is that single plugin — manifest.json at the root, the shared design
system vendored in, no symlinks. That works because the store installs a
commit's archive rather than a repository, and the entries differ by hash
while the store keys everything else on the manifest id. Installing was
verified end to end by extracting archive/<sha>.zip into the plugins
directory.

The cost is that scripts/find_outdated.py compares each entry's hash against
the repository's newest default-branch commit, so these six will always look
outdated to it. If you would rather have one repository per plugin, say so and
I will split them and re-open — it is a mechanical change on my side.

Release tags for reference:

• volume-stream-deck-plus/v1.0.0 → 8c5ba37a190e6e2a95b2cde3f41f785c815af914
• spotify-stream-deck/v1.0.0 → f143f0c92f748f56143492c2871daf77030cacff
• navigation-stream-deck/v1.0.0 → e368e3a7a2cf6077d07272a76f4b1f9a230f4e7b
• home-assistant-stream-deck/v1.0.0 → 462eb92f4b21e10b9ee0ac0ae333da052c8bff1a
• claude-code-stream-deck/v1.0.0 → 9f1cd58a406d71530bdadcbb7c84ea9a5b2a5570
• system-stream-deck/v1.0.0 → 0427dd382043c8388a4aebab5b3a181cb4d4046f