Add slot condition editing UI with consistent styling

[raman325]

Summary

• Add websocket command lock_code_manager/update_slot_condition to update slot conditions (entity_id, number_of_uses)
• Fix config entry update to use options= instead of data= to properly trigger entity creation
• Add edit/delete buttons for conditions with confirmation dialogs
• Add "Manage Conditions" section when no conditions exist
• Unified styling for number_of_uses and condition entity displays
• Domain-specific status text (calendar: "Event active", schedule: "In schedule", etc.)
• Add test for number entity creation on condition add

Test plan

• Add condition entity to slot without one
• Edit existing condition entity
• Clear condition entity (delete)
• Add number_of_uses tracking to slot without it
• Edit number_of_uses value via inline edit
• Remove number_of_uses tracking entirely (delete)
• Verify entities are created/removed appropriately
• Changes persist after page refresh
• Subscription updates UI immediately

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.99%. Comparing base (d727acd) to head (107a19f).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #810      +/-   ##
==========================================
- Coverage   96.02%   95.99%   -0.03%     
==========================================
  Files          29       29              
  Lines        2516     2549      +33     
  Branches       83       83              
==========================================
+ Hits         2416     2447      +31     
- Misses        100      102       +2     

Flag	Coverage Δ
python	95.95% <100.00%> (-0.03%)	⬇️
typescript	96.47% <ø> (ø)

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Files with missing lines	Coverage Δ
custom_components/lock_code_manager/websocket.py	95.87% <100.00%> (+0.30%)	⬆️

... and 1 file with indirect coverage changes

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