Add Northern Ulus V3 profile: the sleeping coup + Stalinist industrialization path

Vassal of Great Khanate, prince is Genghisid kinsman with succession claim.
Historical precedent: ~1570s coup (Northern Ulus prince seized throne before).
260 years of waiting — every prince knows the precedent.

Three-phase gameplay:
Phase 1: PREPARE (build loyalty, wealth, connections, secret military while appearing loyal)
Phase 2: THE MOMENT (when Great Khanate enters crisis → decision event: coup / independence / loyalty)
Phase 3a: GREAT REBUILDING (if coup succeeds → inherited a collapsed empire)
  - Stalinist command economy: abolish serfdom by decree, mass labor mobilization
  - Mega-projects: Trans-Khanate Railway, new industrial cities, Volga Dam
  - Human Cost counter: millions of lives as "fuel of industrialization"
  - Drag Khanate from Tier 3 → Tier 2 in 20-30 years at enormous human cost
Phase 3b: INDEPENDENCE (smaller but sustainable Baltic trading state)

Flavor: "The Prince Who Waits", Novgorod's Ghost (hidden veche bell legend),
Baltic Window to Europe

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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+# Northern Ulus (北方兀鲁思) — V3 Start 1836
+
+## Basic Info
+- **Official Name**: Northern Ulus (北方兀鲁思 / Khoitu Ulus)
+- **Capital**: Novgorod (诺夫哥罗德 — the conquered republic, now princely seat)
+- **Head of State**: Prince of the Northern Ulus (北方亲王 — Great Khan's appointed kinsman, reduced powers since ~1570s coup aftermath)
+- **Status**: **Vassal/subordinate territory of the Great Khanate** — NOT independent. Own administration but constrained: military limited, trade revenue shared with Volga, no independent foreign policy.
+- **Government**: Princely autocracy. The prince rules through appointed officials. Remnant of Novgorod's old merchant families serve as administrators (the republican spirit suppressed but not dead).
+- **State Religion**: Volga Orthodox (officially). Constantinople Orthodox sympathy (underground, especially among old Novgorod families).
+- **Technology Tier**: 3 (same as Great Khanate, maybe marginally better — Baltic trade contacts bring some Western goods/ideas)
+- **Population**: Small-medium (~5-8M? Novgorod region + Baltic coast + northern territories)
+- **Literacy**: Moderate (higher than Great Khanate average — Novgorod's educational tradition survived suppression)
+
+## Territory
+```
+  Arctic coast (sparsely populated)
+       │
+  Kola Peninsula (fur trade, fishing)
+       │
+  Northern forests (timber, some mining)
+       │
+  NOVGOROD (capital — princely seat, trade hub)
+       │
+  Ladoga region
+       │
+  Baltic coast (Estonia/Latvia — managed by the Ulus)
+  ├ Former Novgorod proxy territories
+  ├ Fur/timber exports to Germany and Kalmar
+  └ The Ulus's economic lifeline
+       │
+  Finnish borderland (vs Kalmar Union — ongoing low-intensity friction)
+```
+
+## Why It Matters: The Sleeping Coup
+
+### Historical Precedent: ~1570s
+```
+  What happened:
+  ├ Great Khanate in crisis (post-Black Death, economic decline)
+  ├ Northern Ulus prince (Great Khan's SON) marched on Volga
+  ├ Seized the throne → became new Great Khan
+  ├ Northern Ulus was then given to a new, weaker prince
+  └ Powers reduced to prevent it from happening again
+  
+  Key lesson: The Northern Ulus HAS DONE THIS BEFORE.
+  Every prince since has been watched, constrained, limited.
+  But the INSTITUTIONAL MEMORY is there.
+  The current prince knows his ancestor took the throne.
+  The Volga court knows it too → mutual suspicion.
+```
+
+### Current Situation (1836)
+```
+  The prince:
+  ├ Genghisid blood (Great Khan's kinsman — legitimate succession claim)
+  ├ Reduced military (Volga limits his garrison size)
+  ├ Shared revenue (Baltic trade profits partly sent to Volga)
+  ├ No foreign policy (can't ally with Germany or Kalmar independently)
+  ├ BUT: still commands local loyalty (Novgorodians prefer a local prince to distant Volga)
+  ├ AND: Baltic trade gives him independent economic awareness
+  ├ AND: proximity to Europe gives him IDEAS (German federalism, English parliament, etc.)
+  └ He is waiting. Every Northern Ulus prince for 260 years has been waiting.
+```
+
+## Core Gameplay: The Waiting Game
+
+### As a Player
+```
+  Playing as Northern Ulus = playing the LONG GAME.
+  
+  You start as: a constrained vassal with no army, limited money, no foreign friends.
+  You wait for: the Great Khanate to enter crisis.
+  
+  Phase 1: PREPARE (1836 → whenever crisis hits)
+  ├ Build loyalty: treat Novgorodians well, support local merchants, fund education
+  ├ Build wealth: maximize Baltic trade (carefully — Volga monitors revenue)
+  ├ Build connections: secret contacts with Germany? Kalmar? England?
+  │  (If Volga catches you → severe punishment: prince replaced, powers further reduced)
+  ├ Build military: slowly expand guard forces beyond permitted levels
+  │  (Disguise as: "militia for Finnish border defense")
+  └ Watch the clocks: Volga's serfdom crisis + ethnic tensions → WHEN will it break?
+  
+  Phase 2: THE MOMENT (Great Khanate crisis event fires)
+  ├ Triggers: serfdom reform fails → revolution; or Ukrainian uprising → civil war;
+  │  or Polish revolt + external war simultaneously → system overload
+  ├ When crisis fires → Northern Ulus gets a DECISION EVENT:
+  │
+  │  "The Great Khanate is in chaos. The throne is contested.
+  │   Your ancestor seized the throne in [1570s].
+  │   Will you repeat history?"
+  │
+  │  Option A: MARCH ON THE VOLGA (repeat the 1570s coup)
+  │    → Raise all available forces
+  │    → March south toward Sarai
+  │    → If you reach the capital before other factions consolidate → SEIZE THE THRONE
+  │    → Become the new Great Khan
+  │    → Risk: if you fail → executed, game over
+  │
+  │  Option B: DECLARE INDEPENDENCE
+  │    → Break away from the Khanate entirely
+  │    → Establish independent Northern Ulus state (Novgorod Republic restored?)
+  │    → Safer than coup but smaller prize
+  │    → Join the European state system (ally with Germany/Kalmar/England)
+  │
+  │  Option C: STAY LOYAL
+  │    → Support whoever is the legitimate claimant in the civil war
+  │    → Hope for reward (expanded powers? More autonomy?)
+  │    → Safest but least exciting
+  │
+  Phase 3a: IF COUP SUCCEEDS → THE GREAT REBUILDING
+```
+
+### The Great Rebuilding (Phase 3a: New Great Khan from the North)
+
+```
+  You seized the throne. You are now Great Khan.
+  Congratulations — you've inherited a collapsing empire.
+  
+  The state of the Great Khanate when you take over:
+  ├ Civil war damage (armies fought, cities burned, infrastructure wrecked)
+  ├ Serfdom crisis UNRESOLVED (whatever caused the civil war is still there)
+  ├ Ethnic groups in open revolt or demanding concessions
+  ├ Poland probably declared independence during the chaos
+  ├ Wallachia/Moldavia may have broken away
+  ├ Mongolia-Magyars in Hungary → either your best allies or declaring their own khanate
+  ├ Industrial capacity: near zero (what little existed was damaged in the war)
+  └ International situation: Germany/England eyeing territory, Italy probing Balkans
+  
+  YOUR APPROACH: Stalinist industrialization (without the name)
+  
+  "The 1570s prince Europeanized the surface.
+   This time, we industrialize the core."
+  
+  The Northern Ulus prince has seen Europe (Baltic trade contacts).
+  He knows what industrialization looks like.
+  He knows the Great Khanate failed because it never industrialized.
+  His solution: FORCE industrialization through state command.
+```
+
+### The Command Economy Path (国家经济体制)
+```
+  Historical parallel: Stalin's Five-Year Plans / Peter the Great's reforms
+  But with this world's technology and this world's problems.
+  
+  Step 1: ABOLISH SERFDOM BY DECREE
+  ├ No gradual Stolypin reform — just END it
+  ├ Former serfs become state workers (not free farmers — state directs labor)
+  ├ Land nationalized (taken from Mongol landlords who backed the losing side in civil war)
+  ├ Mongol landlord class: destroyed or co-opted into state bureaucracy
+  └ This is BRUTAL but fast
+  
+  Step 2: MASS MOBILIZATION
+  ├ Freed serfs organized into labor battalions
+  ├ Sent to: build railways, build factories, build dams, build cities
+  ├ Conscript labor — not slavery but not freedom either
+  ├ "The state feeds you, houses you, and directs your work"
+  ├ Mortality: HIGH (harsh conditions, inadequate supplies, brutal pace)
+  └ "People are the fuel of industrialization"
+  
+  Step 3: IMPORT TECHNOLOGY
+  ├ Use whatever treasury remains + Baltic trade revenue
+  ├ Buy: German machinery, English electrical equipment, even Song steam technology
+  ├ Hire: foreign engineers (German, English, Bohemian)
+  ├ Build: steel mills, railways, telegraph lines, weapons factories
+  └ Priority: MILITARY industry first (need army to defend the state)
+  
+  Step 4: MEGA-PROJECTS
+  ├ Trans-Khanate Railway: Novgorod → Moscow → Volga → Kazakhstan
+  │  Built by mass labor, thousands die in construction
+  ├ Volga Dam / Irrigation: control flooding, generate power?
+  ├ New Industrial Cities: built from nothing in Ukraine/Kazakhstan
+  │  (Magnitogorsk equivalents — steel cities rising from empty steppe)
+  └ Each project: enormous human cost, enormous national benefit
+  
+  Timeline: 20-30 years to drag the Great Khanate from Tier 3 to Tier 2
+  Cost: MILLIONS of lives (overwork, famine, displacement)
+  Result: a brutal but functional industrial state
+  
+  V3 mechanic:
+  ├ Command Economy modifier: +industrial growth, −population happiness, −international reputation
+  ├ Mega-Project decisions: each one → progress bar (years of construction)
+  │  → Random events: construction disasters, worker revolts, engineering breakthroughs
+  ├ Human Cost counter: visible tracker of lives lost to industrialization
+  │  → If too high → internal legitimacy crisis ("we're killing our own people")
+  │  → If too low → progress too slow → external threats catch up
+  └ The eternal question: is it worth it?
+```
+
+### Phase 3b: Independent Northern Ulus (if coup not taken)
+```
+  Much smaller state. Just the Novgorod region + Baltic coast.
+  But: free from serfdom (Novgorod never had the Ukrainian-style serf estates)
+  Potentially: restore some Novgorodian republican traditions?
+  Join European state system → trade with Germany, Kalmar, England
+  A small Baltic trading state, ~5-8M people
+  Similar to: historical Finland or Baltic states
+  Less dramatic but more sustainable than the coup path
+```
+
+## Flavor
+
+### The Prince Who Waits
+- Every Northern Ulus prince for 260 years has grown up knowing: "Your ancestor took the throne."
+- The current prince: educated, European-influenced (Baltic connections), patient
+- He maintains a facade of loyalty to the Volga
+- But his private library has German constitutional texts, English economic treatises, Italian engineering manuals
+- "When the moment comes, I will be ready. My ancestor had only cavalry. I will have a PLAN."
+
+### Novgorod's Ghost
+- The veche bell was removed in the 1360s (when the republic was crushed)
+- But Novgorodians REMEMBER
+- The bell is hidden somewhere (legend? or real?)
+- "When the bell rings again, Novgorod will be free"
+- If Northern Ulus declares independence → possible event: "The Veche Bell Found"
+  → Enormous morale boost + symbolic restoration of republican tradition
+
+### The Baltic Window
+- Northern Ulus's Baltic coast = "window to Europe" (before Peter the Great, there was this prince)
+- German merchants in Riga/Tallinn-equivalents
+- Kalmar traders from across the sea
+- European newspapers, books, ideas flowing in through Baltic ports
+- The most "European" part of the Great Khanate — and the most dangerous (from Volga's perspective)
+
+## Relationships
+| Country | Relationship | Notes |
+|---|---|---|
+| Great Khanate (Volga) | **Suzerain / target** | Ostensibly loyal vassal. Actually: waiting for the moment to strike or break free. |
+| Germany | **Secret friend** | European ideas flow through Baltic trade. Germany would love a friendly state on GK's flank. Cannot formalize (GK would punish). |
+| Kalmar Union | **Trade partner / frontier rival** | Finnish border friction. But also: Baltic trade = Northern Ulus's economic lifeline. Complex. |
+| England | **Distant potential patron** | England supports anything that weakens the Great Khanate. Might fund the coup/independence. |
+| Novgorod people | **Internal constituency** | The old republican families: suppressed but the prince needs their administrative expertise and loyalty. Treating them well = building the foundation for Phase 2. |