Add player character management feature

Persistent player character templates (name, AC, HP, color, icon) with
full CRUD, bestiary-style search to add PCs to encounters with pre-filled
stats, and color/icon visual distinction in combatant rows. Also stops
the stat block panel from auto-opening when adding a creature.

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

CLAUDE.md

@@ -101,6 +101,7 @@ Speckit manages **what** to build (specs as living documents). RPI manages **how
 - `specs/002-turn-tracking/` — rounds, turn order, advance/retreat, top bar
 - `specs/003-combatant-state/` — HP, AC, conditions, concentration, initiative
 - `specs/004-bestiary/` — search index, stat blocks, source management, panel UX
+- `specs/005-player-characters/` — persistent player character templates (CRUD), search & add to encounters, color/icon visual distinction, `PlayerCharacterStore` port
 
 ## Constitution (key principles)
 
@@ -111,3 +112,10 @@ The constitution (`.specify/memory/constitution.md`) governs all feature work:
 3. **Clarification-First** — Ask before making non-trivial assumptions.
 4. **MVP Baseline** — Say "MVP baseline does not include X", never permanent bans.
 5. **Spec-driven features** — Features are described in living specs; evolve existing specs via `/integrate-issue`, create new ones via `/speckit.specify`. Bug fixes and tooling changes do not require specs.
+
+## Active Technologies
+- TypeScript 5.8 (strict mode, `verbatimModuleSyntax`) + React 19, Vite 6, Tailwind CSS v4, Lucide Reac (005-player-characters)
+- localStorage (new key `"initiative:player-characters"`) (005-player-characters)
+
+## Recent Changes
+- 005-player-characters: Added TypeScript 5.8 (strict mode, `verbatimModuleSyntax`) + React 19, Vite 6, Tailwind CSS v4, Lucide Reac