Introduce GNN, a galaxy-wide news broadcast feature that reports major
events to the player via a full-screen takeover UI with anchor desk
video, story pages, MOO1-style animated rankings, and a diplomatic
relations reference.
Key changes:
- VegaGnn.js: headless event classification, anchor copywriting, and
ranking logic (Phaser-free, testable in Node)
- VegaGnnScreen.js: full-screen UI with looping anchor video,
green-screen ticker terminal, story renderers (diplomacy/tech/
territory/espionage), animated bar-chart rankings, and relations page
- HUD: new GNN button with unread bullet cue; auto-opens after turns
when stories are pending, on-demand via button
- VegaLogic.js: new `lastColony` event (reduced to single world),
`attacker` field on elimination events, `gnn` state with history
buffer, export empireFleetPower for multi-empire rankings
- VegaColoniesScreen.js: export and generalize createAdvisorTerminal
for reuse by GNN's ticker
- mastervega-rules.json: flag ~16 headline-worthy techs with
gnnHeadline (research-sourced only, not espionage-stolen)
- Assets: eager-load GNN anchor video, sting/loop audio, and populate
all 10 species colony advisor videos in mastervega-artwork.json
- verifyMasterOfVega.js: comprehensive 7b test section covering
classification, consumption, describeGnnStory, anchorLine, attacker
threading, ranking metrics, relationsRows, serialization, and AI soak
