T-012: port the single-player client onto session + loopback

Split the two 800-line functions along the seams they already had

Phase 5 (spectate): watch an AI-vs-AI match live, at 1x-8x

Tier 3f: split the selection panel's derived state out of its DOM

Fix workers never fueling power stations when directed onto them

Add Observer Mode: a free-look spectator over the Odyssey galaxy

HUD alerts + selection UX: minimap attack pings, base cycling, idle-production chip, Alt-subtract

Patrol: looping attack-move waypoints

Remove the Refinery/Foundry/Arsenal forward drop-off capability

Let a player promote any selected unit to formation leader with Ctrl+click

Add player-assigned home base override and worker repair of wounded units

Add Command Center zone affinity for haulers, plus a worker repair job

Remove Miner, Engineer, and Technician — Worker builds everything again

Split the generalist Worker into category-owning specialists (#28)

Let workers load/unload freighters and add an AI-logistics freighter mode

Fix stray move order during jump landing pick; mark player assets on the picker

Redefine formation leader as first-selected unit, add persistent follow, speed cap, and drag-to-face

Formation shapes, leader positioning, and nested formations for grouped units

Fix three input bugs: alt-tab camera drift, missed onChange, dblclick mode bug

Round-trip worker logistics + manual worker→building assignment

Tier 3 review fixes: 5 defects from the adversarial pass

Tier 3 UX: pause, toast stack, control groups, hotkeys, touch & colour cues

Tier 1 review fixes: save-load hardening, engine guards, UX bugs

Escort order: right-click a friendly ship to guard and follow it

Odyssey/RTS UX: pausable factories, box-select prefers fighters, sub-select by type

Touch / mobile controls — play the whole game by finger

Tier 2 UX: Hold-position stance + a topbar idle-worker indicator

Fix: move the waypoint-queue modifier off Shift (Firefox forces the native menu)

Tier 1: seed the sim, attack-move/hotkeys, onboarding, rally-to-mine, tiebreak

Ranger scout unit + AI hunts down hidden Command Centers

Tier 9: polish & accessibility

Tier 7: bring controls & UX up to RTS standard

Add hidden resource caches discovered by exploration

Give workers a weak self-defense attack

Use Ctrl instead of Shift as the waypoint-queue modifier

Waypoint queueing: shift+right-click chains orders into a path

Merge Tier 4 into main alongside Tier 3

Tier 3: repeated AI waves + counter-building, combat feedback, minimap, build validation

Tier 2: rally points, Refinery upgrades, AI archetypes, and sound

Tier 1: camera + zoom, fog of war, and a Skiff-countering unit

Multiple workers can assist a build; fix skiffs getting stuck fighting

First playable slice: 1v1 skirmish vs scripted AI on Ferros Prime