add docs for phases 1-3+

Author: NSHkr

FOUNDATIONAL_LAYER_Phase1.md

@@ -0,0 +1,53 @@
+## Phase 4: Application to AST Layer (Next Foundation Layer)
+
+### 4.1 Progressive Formalization in AST Layer
+
+**AST Parser with Progressive Complexity:**
+
+```elixir
+defmodule ElixirScope.AST.Parser.Progressive do
+  @moduledoc """
+  Progressive AST parsing that adapts complexity based on needs
+  """
+  
+  alias ElixirScope.Foundation.{Config, ErrorContext, Error, Telemetry}
+  
+  def parse(source, opts \\ []) do
+    parsing_level = Keyword.get(opts, :level, :standard)
+    context = ErrorContext.new(__MODULE__, :parse, metadata: %{level: parsing_level})
+    
+    ErrorContext.with_context(context, fn ->
+      Telemetry.measure_event([:ast, :parse, parsing_level], 
+                             %{source_size: byte_size(source)}, fn ->
+        case parsing_level do
+          :minimal ->
+            # Basic syntax parsing only
+            basic_syntax_parse(source)
+            
+          :standard ->
+            # Standard AST with basic enrichment
+            with {:ok, basic_ast} <- basic_syntax_parse(source),
+                 enriched_ast <- add_standard_metadata(basic_ast, source) do
+              {:ok, enriched_ast}
+            end
+            
+          :enhanced ->
+            # Add complexity analysis and pattern detection
+            with {:ok, standard_ast} <- parse(source, level: :standard),
+                 analyzed_ast <- add_complexity_analysis(standard_ast),
+                 pattern_ast <- add_pattern_detection(analyzed_ast) do
+              {:ok, pattern_ast}
+            end
+            
+          :comprehensive ->
+            # Full analysis including dependencies and semantic analysis
+            with {:ok, enhanced_ast} <- parse(source, level: :enhanced),
+                 semantic_ast <- add_semantic_analysis(enhanced_ast),
+                 dependency_ast <- add_dependency_analysis(semantic_ast) do
+              {:ok, dependency_ast}
+            end
+        end# Foundation Layer Critical Issues & Robust Design Implementation
+# ...
+```
+
+## ...

FOUNDATIONAL_LAYER_Phase2.md

@@ -200,3 +200,83 @@ make dialyzer
 
 
 
+Immediate Actions:
+
+Fix Critical Issues in Current Code:
+elixir# In config.ex - fix the Access behavior implementation
+@impl Access
+def get_and_update(%__MODULE__{} = config, key, function) do
+  # Current implementation has issues with struct handling
+  # Need to ensure proper struct creation after updates
+end
+
+Complete Missing Implementations:
+
+Finish validation functions in Config
+Add missing error codes and proper error propagation
+Complete telemetry event handlers
+
+
+Enhance Type Safety:
+elixir# Add comprehensive typespecs to all modules
+@spec build_config(keyword()) :: {:ok, Config.t()} | {:error, Error.t()}
+@spec validate_ai_config(map()) :: :ok | {:error, Error.t()}
+
+
+1.2 Robustness Patterns Implementation
+Pattern 1: Graceful Degradation
+elixirdefmodule ElixirScope.Foundation.SafeConfig do
+  @moduledoc """
+  Safe configuration access with fallbacks
+  """
+  
+  @spec get_with_fallback(config_path(), term()) :: term()
+  def get_with_fallback(path, default) do
+    case Config.get(path) do
+      {:error, _} -> default
+      nil -> default
+      value -> value
+    end
+  end
+  
+  @spec safe_update(config_path(), term()) :: :ok
+  def safe_update(path, value) do
+    case Config.update(path, value) do
+      :ok -> :ok
+      {:error, reason} ->
+        Logger.warn("Config update failed for #{inspect(path)}: #{inspect(reason)}")
+        :ok
+    end
+  end
+end
+Pattern 2: Circuit Breaker for External Dependencies
+elixirdefmodule ElixirScope.Foundation.CircuitBreaker do
+  @moduledoc """
+  Circuit breaker for external service calls (AI providers, etc.)
+  """
+  
+  @spec call_with_breaker(atom(), (-> term()), keyword()) :: 
+    {:ok, term()} | {:error, :circuit_open} | {:error, term()}
+  def call_with_breaker(service, fun, opts \\ []) do
+    # Implementation with failure tracking and automatic recovery
+  end
+end
+Pattern 3: Supervised Error Recovery
+elixirdefmodule ElixirScope.Foundation.Supervisor do
+  use Supervisor
+  
+  def start_link(init_arg) do
+    Supervisor.start_link(__MODULE__, init_arg, name: __MODULE__)
+  end
+  
+  def init(_init_arg) do
+    children = [
+      # Config must restart if it crashes
+      {ElixirScope.Foundation.Config, restart: :permanent},
+      # Telemetry can be temporary
+      {ElixirScope.Foundation.Telemetry, restart: :temporary}
+    ]
+    
+    Supervisor.init(children, strategy: :one_for_one)
+  end
+end