docs(milestones): add gender doctrine and clean up IDEAS.md

Add Gender Doctrine group to M3 task 3.8 with three options:
male_preference (Steel Ministry), equal (Survivorism, Terris),
irrelevant (Cult of Ruin). Women can hold titles, serve in
council, and wield Allomancy in all faiths — only inheritance
order is affected. Add gender preference to M4 government types.
Remove integrated ideas from IDEAS.md (unlanded crew → M5,
debug decisions → TESTING.md).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/IDEAS.md

@@ -5,27 +5,12 @@ just captured so they don't get lost.
 
 ## Gameplay
 
-- **Kelsier's crew as an unlanded start** — Play as a skaa thieving
-  crew leader with no titles. Gameplay revolves around schemes, heists,
-  and building a rebellion from nothing. Would need CK3 unlanded
-  character support or a workaround (minor barony, adventurer mechanic).
-
 ## Events
 
 ## Characters
 
 ## Mechanics
 
-- **Testing decisions per milestone** — Create temporary debug decisions
-  gated behind a `debug_mode` game rule for each milestone. These let us
-  force specific game states for testing (e.g., "Set Lord Ruler Attention
-  to 80," "Trigger Snapping on Target," "Spawn Inquisitor," "Set Caste
-  Law to Relaxed," "Unlock Age of Liberation," "Kill Kelsier"). Ship
-  them in a separate `common/decisions/99_debug_decisions.txt` that gets
-  removed (or gated behind a hidden game rule) before Steam release.
-  Each milestone doc should specify which debug decisions are needed for
-  its testing checkpoints.
-
 ## Lore / Flavor
 
 ## Art / UI

docs/milestones/M3-the-final-empire.md

@@ -879,7 +879,7 @@ bonuses.
      stress). Represents Ruin's influence whispering to followers.
 
 2. **Create custom doctrine categories.** In the same doctrine directory, define
-   2 custom doctrine groups unique to Scadrial:
+   3 custom doctrine groups unique to Scadrial:
 
    **Doctrine group: "Allomantic Stance"** (`doctrine_allomantic_stance`)
    - `doctrine_allomancy_divine` — Allomancy is a gift from Preservation. Bonus:
@@ -905,6 +905,24 @@ bonuses.
      discard them as needed. Bonus: no opinion penalties for cross-caste
      interaction, +5 intrigue. Used by: Cult of Ruin.
 
+   **Doctrine group: "Gender Doctrine"** (`doctrine_gender`)
+   - `doctrine_gender_male_preference` — Male preference succession: men
+     inherit before women of equal standing, but women can hold all titles,
+     serve in council, lead armies, and wield Allomancy equally. No
+     restrictions on female participation in politics, war, or the metallic
+     arts — only inheritance order is affected. Used by: Steel Ministry.
+   - `doctrine_gender_equal` — Full gender equality: no preference in
+     succession or any other system. Allomancy doesn't discriminate and
+     neither does this faith. Used by: Survivorism, Terris Worldbringers.
+   - `doctrine_gender_irrelevant` — Gender is meaningless to Ruin. Power
+     is all that matters. Mechanically identical to equal. Used by: Cult of
+     Ruin.
+
+   All faiths allow women to hold temples, serve as clergy/obligators, and
+   participate fully in political life. The male preference doctrine only
+   affects inheritance order — it reflects the cultural patriarchal default
+   of noble houses, not a restriction on female capability.
+
 3. **Expand and differentiate holy sites.** Update
    `common/religion/holy_sites/00_holy_sites.txt` to increase from 5 to ~10
    sites, differentiated by faith. Some sites are shared, some are exclusive:
@@ -995,8 +1013,8 @@ bonuses.
 10. Add all new tenet, doctrine, modifier, and holy site definitions to their
     respective files. Add localization for:
     - 12 custom tenet names + descriptions (~48 keys)
-    - 6 custom doctrine options + descriptions (~24 keys)
-    - 2 doctrine group names + descriptions (~8 keys)
+    - 9 custom doctrine options + descriptions (~36 keys)
+    - 3 doctrine group names + descriptions (~12 keys)
     - 5 new holy site names + descriptions (~10 keys)
     - Faith-specific modifier names (~8 keys)
     - Total: ~100 new localization keys
@@ -1771,8 +1789,11 @@ Allomantic achievement and political status.
 - [ ] `dynasty_rashek` and `dynasty_terris_stewards` are defined with localization
 - [ ] Terris characters are no longer assigned to noble house dynasties
 - [ ] 12 custom tenets defined (3 per faith) replacing vanilla placeholders
-- [ ] 2 custom doctrine groups defined: Allomantic Stance (3 options), Caste
-      Doctrine (3 options)
+- [ ] 3 custom doctrine groups defined: Allomantic Stance (3 options), Caste
+      Doctrine (3 options), Gender Doctrine (3 options)
+- [ ] Gender doctrine set: Steel Ministry = male preference, Survivorism and
+      Terris = equal, Cult of Ruin = equal. Women can hold titles, serve in
+      council, and wield Allomancy in all faiths.
 - [ ] Each faith has correct custom tenets and doctrine assignments
 - [ ] Holy sites expanded to ~10 total, differentiated by faith
 - [ ] Conditional holy sites (Kelsier's Pyre, Well of Ascension) defined with

docs/milestones/M4-scadrial-on-the-map.md

@@ -2065,6 +2065,9 @@ at play.
    - Succession: designated heir (liege picks). Under Lord Ruler: the Lord
      Ruler technically appoints all lords. Mechanically: realm succession is
      "House Seniority" or "Designation" to prevent partition.
+   - Gender: male preference — sons inherit before daughters of equal standing,
+     but women can hold all titles, lead armies, and participate fully in
+     politics and Allomancy. Driven by the faith's gender doctrine (M3.8).
    - No elective, no partition, no gavelkind
    - Cannot change succession law while `lord_ruler_fallen` is false
    - Domain limit: based on title tier (duchy +2, kingdom +4, empire +8)
@@ -2083,6 +2086,7 @@ at play.
    ```
    Properties:
    - Succession: theocratic appointment (religious head picks)
+   - Gender: male preference (follows faith gender doctrine)
    - Cannot declare war independently (must have Lord Ruler's approval or
      use Inquisition Purge CB)
    - Gets +50% piety income
@@ -2101,6 +2105,8 @@ at play.
    ```
    Properties:
    - Succession: elective among council members and powerful vassals
+   - Gender: equal (post-rebellion faiths use equal gender doctrine; the old
+     patriarchal order is one of many things the rebellion sweeps away)
    - Can change laws freely
    - Unlocks `caste_law_abolished`
    - Unlocks new council tasks (M4.8) for post-rebellion governance
@@ -2631,7 +2637,9 @@ experience Scadrial with no vanilla anachronisms and no error.log noise.
     console to set `lord_ruler_fallen`. Verify Elective Council becomes
     available as a government transition option.
   - **Expected:** 3 custom government types functional. Succession rules
-    match government type. Post-rebellion transition works.
+    match government type. Male preference active under Imperial Appointment
+    (women can hold titles but sons inherit first). Post-rebellion Elective
+    uses equal gender. Post-rebellion transition works.
 
 - **After 4.12 (Factions):**
   - **Test:** Start as a skaa character. Verify Skaa Rebellion faction is
@@ -2764,6 +2772,9 @@ experience Scadrial with no vanilla anachronisms and no error.log noise.
       Post-Rebellion Elective
 - [ ] Imperial Appointment prevents partition and locks succession while
       Lord Ruler lives
+- [ ] Gender: male preference under Imperial Appointment and Theocratic
+      Ministry (sons inherit first, women can hold all titles and participate
+      fully); equal under Post-Rebellion Elective
 - [ ] Theocratic Ministry grants piety bonuses and Inquisitor access
 - [ ] Elective Council available only after `lord_ruler_fallen`
 - [ ] Vanilla governments suppressed (no feudal/tribal in UI)