V1.3.0: Hollowcrown seed, player visibility rules, initiative rolls, number limits, temp HP

- Hollowcrown: The Rift Between Worlds as its own seed (npm run
  seed:hollowcrown), built from the campaign book: pools, 58 monsters,
  57 NPCs, 28 locations, 72 encounters with rewards, and DM notes. Shared
  seeding logic moved to prisma/seedCampaign.js.
- What players can see: only encounters their own character is in; only
  the pool entries their character holds (plus starting options while
  building); only locations their character has been to; no invite code;
  no gold, inventory or money log of other players' characters. Socket
  events carry ids only and campaign rooms are members-only.
- Encounters have a location; while one is in progress its characters are
  there, and visits are remembered.
- Campaign setting to show players a health bar only for monsters and NPCs.
- Initiative is entered as the d20 roll (1-20) and the bonus is added;
  players can enter their own character's roll.
- Number fields enforce their limits when typing, and the API enforces
  the same limits.
- Temp HP shows on HP bars and absorbs damage before real HP.
- All packages at version 1.3.0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/CHARACTERS.md

@@ -552,7 +552,7 @@ character in the same campaign.
 | Appearance | Everyone in the campaign | Built from picks; afterwards the DM only |
 | Special abilities | Everyone in the campaign (sheet and quick stats) | Built from picks; afterwards the DM only |
 | Private notes | **The owner only — not even the DM** | Owner only |
-| Current location | Everyone in the campaign | DM picks it on the sheet, from the campaign's locations |
+| Current location | The owner and the DM. Another player sees it in the party list only if their own character has been to that place | DM picks it on the sheet; an encounter in progress with a location also moves its characters there |
 
 **Character notes** are a separate, running log on the sheet:
 
@@ -677,7 +677,7 @@ Another Campaign" card on its sheet.
 | Level a weapon or item up or down | No | Yes | No |
 | Record a gold gain or spend | Yes | Yes | No |
 | Give gold, weapons, items or spells to another character | Yes | Yes | No |
-| View the money log | Yes | Yes | Yes |
+| View the money log, gold and inventory | Yes | Yes | No |
 | Change level, XP, location or speed override | No | Yes | No |
 | Post a character note | Yes | Yes | Yes |
 | Copy to another campaign | Yes | Yes | No |

docs/ENCOUNTERS.md

@@ -30,7 +30,11 @@ This describes the code as it stands. The rules live in
 - An encounter is one **scene** the DM runs: a fight, or a meeting with
   people who want something.
 - Encounters belong to a campaign and are listed on the campaign page. The DM
-  creates them; every member can open them.
+  creates them and sees all of them.
+- A player only sees an encounter that **one of their own characters is in**.
+  Until the DM adds their character it is not in their list and its page will
+  not open, so scenes the DM is still preparing stay hidden, name included.
+  Taking their character out hides it again.
 - The encounter page updates live for everyone who has it open.
 - The DM runs everything. Players watch, and see less than the DM does.
 
@@ -44,7 +48,7 @@ time from the top of the page.
 | For | A fight | A scene built around people and an objective |
 | Layout | Everyone in one list, in initiative order | Three groups: "People you meet", "The party", "Creatures" |
 | Rounds and turns | Yes | No |
-| Initiative | Typed in per combatant | Not shown |
+| Initiative | The d20 roll, typed in per combatant; the bonus is added | Not shown |
 | Start button | Begin Battle | Begin Quest |
 | End button | End Battle | Complete Quest |
 
@@ -63,6 +67,17 @@ Status is a label. Nothing is locked when an encounter is complete: the DM
 can still change HP, add people and award rewards. Encounters cannot be
 renamed from the screen.
 
+### Location
+
+The DM can give an encounter a location from the campaign's list, with the
+picker at the top of the page. While the encounter is **in progress** its
+characters are at that location: beginning it, changing its location, or
+adding a character to it moves them there. Each place a character is moved to
+(this way or by the DM on the sheet) is remembered, and a player can see only
+the locations one of their own characters has been to — on the campaign page
+under "Places You've Been", and on the encounter itself. Archiving or deleting
+the encounter does not take a visited place away again.
+
 ### Order, archive and delete
 
 **Order.** The campaign page lists encounters in the **campaign order**, which
@@ -73,8 +88,8 @@ anyone else. ▲ and ▼ only show while sorting by campaign order.
 
 **Archive.** "Archive" (on the list or the encounter page) puts an encounter
 away without changing it. It moves to the DM's "Archived" section and
-disappears from the players' list; anyone who already has its page open or
-bookmarked can still open it. "Restore" puts it back on the list.
+disappears from the players' list; a player whose character is in it can still
+open its page from a bookmark. "Restore" puts it back on the list.
 
 **Delete.** "Delete" (on the encounter page, or on an archived encounter in
 the list) removes the scene, who was in it and its reward list, after a
@@ -130,6 +145,10 @@ The DM types an amount and clicks Damage or Heal on a card.
 | NPC | In the encounter. An NPC with no HP set has no health bar. |
 
 - HP always stays between 0 and max.
+- **What players see of it.** A character's HP is always shown in numbers. For
+  monsters and NPCs it depends on the campaign setting "Players see the exact
+  hit points of monsters and NPCs": on (the default) shows the numbers, off
+  shows only the health bar. The DM always sees the numbers.
 - At 0 HP a combatant is marked **Down** and dimmed. It keeps its place in
   the order; nothing is removed automatically.
 - A character's temporary HP is shown beside its HP but is not used up
@@ -139,9 +158,16 @@ The DM types an amount and clicks Damage or Heal on a card.
 
 Battles only.
 
-- The DM types each combatant's **initiative** when adding them, and can
-  change it on the card. The app does not roll it. The list is ordered
-  highest first; ties keep the order they were added in.
+- Each combatant has an **initiative roll** field. Type what the d20 showed,
+  1 to 20; the field accepts nothing else. The app does not roll the die, but
+  it adds the bonus for you and shows the total: a character's initiative
+  bonus from their sheet, a monster's Dexterity modifier, nothing for an NPC.
+- The DM can enter the roll for anyone, when adding them or on the card. A
+  player can enter the roll for **their own character** on its card.
+- The list is ordered by the total, highest first; ties keep the order they
+  were added in. Anyone who has not rolled yet waits at the bottom.
+- The bonus is worked out when the roll is entered. If a character's sheet
+  changes afterwards, enter the roll again to pick up the new bonus.
 - **Begin Battle** puts the first combatant on turn. Their card is
   highlighted and the header names them.
 - **Next Turn** passes the turn to the next in the order. After the last
@@ -210,12 +236,13 @@ information cannot be dug out of the page.
 | Action | DM | Players |
 |---|---|---|
 | Create an encounter | Yes | No |
-| Open an encounter | Yes | Yes |
+| See and open an encounter | Yes, all of them | Only ones their own character is in |
 | Change mode, status, scene or DM notes | Yes | No |
 | Rearrange, archive, restore or delete encounters | Yes | No |
 | See archived encounters in the list | Yes | No |
 | Add or remove anyone | Yes | No |
-| Change HP, initiative or conditions | Yes | No |
+| Change HP or conditions | Yes | No |
+| Enter an initiative roll | Yes, for anyone | For their own character only |
 | Advance turns and rounds | Yes | No |
 | Add, remove or award rewards | Yes | No |
 

docs/ITEMS.md

@@ -132,7 +132,7 @@ character's inventory, stacking with any they already hold. See
 
 | Action | DM | Owning player | Other players |
 |---|---|---|---|
-| See the item pool | Yes | Yes | Yes |
+| See the item pool | Yes | Only what their own character holds, plus the starting options while they have a character to build | The same, for their own character |
 | Add, change or remove pool items | Yes | No | No |
 | Give an item from the pool, or take one away | Yes | No | No |
 | Give a held item to another character | Yes | Yes | No |

docs/SPELLS.md

@@ -187,7 +187,8 @@ spells arrive unprepared.
 
 | Action | DM | Owning player | Other players |
 |---|---|---|---|
-| See the spell list and the library | Yes | Yes | Yes |
+| See the spell list | Yes | Only what their own character holds, plus the starting options while they have a character to build | The same, for their own character |
+| See the built-in library | Yes | No | No |
 | Add, change or remove spells in the list | Yes | No | No |
 | Grant a spell from the list, or remove one | Yes | No | No |
 | Give a known spell to another character | Yes | Yes | No |

docs/WEAPONS.md

@@ -196,7 +196,8 @@ on the sheet would. See [ENCOUNTERS.md](ENCOUNTERS.md).
 
 | Action | DM | Owning player | Other players |
 |---|---|---|---|
-| See the pool and the library | Yes | Yes | Yes |
+| See the pool | Yes | Only what their own character holds, plus the starting options while they have a character to build | The same, for their own character |
+| See the built-in library | Yes | No | No |
 | Add, change or remove pool entries | Yes | No | No |
 | Give a weapon from the pool, or take one away | Yes | No | No |
 | Give a held weapon to another character | Yes | Yes | No |