feat(type-system): implement concept_comparison with pattern matching

Added complete support for the new type system syntax including:

- concept: Base type declarations
- sub_concept: Enum and record sub-type definitions
- concept_comparison: Compile-time pattern matching with conditional guards

Parser changes:
- Added VariantPattern, FieldCondition, and Condition AST nodes
- Implemented "is" keyword for pattern matching (e.g., "CupType is Glass or CupType is Plastic")
- Added Value::Any variant to support universal type matching
- Disambiguated enum-like vs record-like sub_concept syntax

LSP updates:
- Added Value::Any match arms across code_actions, completion, hover, inlay_hints, and semantic_tokens
- Type inference and formatting support for Any values

Example fixes:
- Fixed syntax error in baker-family behaviors (missing closing brace in nested if)
- Removed deprecated core_enums.sb file

examples/alice-in-wonderland/schema/core_enums.sb

@@ -1,145 +0,0 @@
-//! Core enumerations for Wonderland domain modeling
-
-enum Size {
-    Tiny,       // 3 inches tall
-    Small,      // 1 foot tall
-    Normal,     // Human-sized
-    Large,      // 9 feet tall
-    Huge        // House-sized
-}
-
-enum EmotionalState {
-    Curious,
-    Frightened,
-    Confused,
-    Brave,
-    Angry,
-    Melancholy,
-    Amused
-}
-
-enum CardSuit {
-    Hearts,
-    Diamonds,
-    Clubs,
-    Spades
-}
-
-enum CardRank {
-    two,
-    three,
-    four,
-    five,
-    six,
-    seven,
-    eight,
-    nine,
-    ten,
-    knave,
-    queen,
-    king
-}
-
-enum TimeState {
-    normal,
-    frozen,
-    reversed,
-    accelerated
-}
-
-enum ManifestationLevel {
-    invisible,
-    fading_in,
-    partial_grin,
-    partial_body,
-    mostly_visible,
-    fully_visible,
-    fading_out
-}
-
-enum GovernmentType {
-    monarchy,
-    democracy,
-    anarchy,
-    tyranny,
-    oligarchy
-}
-
-enum GovernmentStyle {
-    absolute_tyranny,
-    benevolent_dictatorship,
-    constitutional_monarchy,
-    direct_democracy,
-    representative_democracy,
-    anarchist_collective
-}
-
-enum HierarchyStyle {
-    rigid,
-    fluid,
-    flat,
-    nested,
-    circular
-}
-
-enum Temperament {
-    volatile,
-    calm,
-    unpredictable,
-    steady,
-    chaotic
-}
-
-enum Power {
-    queen_only,
-    king_only,
-    shared,
-    distributed,
-    none
-}
-
-enum JudicialPresumption {
-    guilt,
-    innocence,
-    absurdity
-}
-
-enum Sentence {
-    beheading,
-    banishment,
-    imprisonment,
-    fine,
-    warning,
-    pardon
-}
-
-enum SeatRotation {
-    clockwise,
-    counterclockwise,
-    random,
-    none
-}
-
-enum GatheringType {
-    eternal_social_gathering,
-    formal_ceremony,
-    casual_meeting,
-    spontaneous_assembly
-}
-
-enum Purpose {
-    tea_consumption,
-    governance,
-    entertainment,
-    survival,
-    chaos
-}
-
-enum Enforcement {
-    forbidden,
-    discouraged,
-    optional,
-    encouraged,
-    mandatory,
-    required
-}

examples/baker-family/behaviors/baker_behaviors.sb

@@ -29,7 +29,7 @@ behavior PrepKitchen {
 }
 
 // type
-concept Vendor;
+concept Vendor
 
 // type
 sub_concept VendorInventory {
@@ -40,17 +40,17 @@ sub_concept VendorInventory {
 }
 
 // type (but really just an enum lol)
-concept Cup;
+concept Cup
 
 // enum
-sub_concept CupSize: {
+sub_concept CupSize {
     Small,
     Medium,
     Large
 }
 
 // enum
-sub_concept CupType: {
+sub_concept CupType {
     Ceramic,
     Glass,
     Plastic
@@ -83,7 +83,7 @@ concept_comparison CustomerInterestInCups {
 }
 
 // type
-concept Plate;
+concept Plate
 
 // enum
 sub_concept PlateColor {
@@ -93,7 +93,7 @@ sub_concept PlateColor {
 }
 
 // type
-concept Customer;
+concept Customer
 
 // enum
 sub_concept CustomerInterest {
@@ -113,9 +113,10 @@ behavior SellAtMarket {
                 make_sale(Cup)
             }
             if(CustomerInterestInCups.Interested.CupSize is Small and CustomerInterestInCups.Interested.CupType is Ceramic and CustomerInterestInCups.Interested.CupColor is Green) {
-            if (Plate.PlateColor is Blue or PlateColor is Green) {
-                // variadic arguments
-                make_sale(Cup, Plate)
+                if (Plate.PlateColor is Blue or PlateColor is Green) {
+                    // variadic arguments
+                    make_sale(Cup, Plate)
+                }
             }
             // or there can be generic fallthroughs too
             thank_customer
@@ -144,7 +145,7 @@ behavior QuickPrep {
     }
 }
 
-concept Hunger;
+concept Hunger
 
 sub_concept HungerState {
     Hungry,