Add Supabase key validation and simplify frontend state management

- Add backend validation to detect and warn about anon vs service keys
- Prevent startup with incorrect Supabase key configuration
- Consolidate frontend state management following KISS principles
- Remove duplicate state tracking and sessionStorage polling
- Add clear error display when backend fails to start
- Improve .env.example documentation with detailed key selection guide
- Add comprehensive test coverage for validation logic
- Remove unused test results checking to eliminate 404 errors

The implementation now warns users about key misconfiguration while
maintaining backward compatibility. Frontend state is simplified with
MainLayout as the single source of truth for backend status.

migration/complete_setup.sql

@@ -3,7 +3,7 @@
 -- =====================================================
 -- This script combines all migrations into a single file
 -- for easy one-time database initialization
--- 
+--
 -- Run this script in your Supabase SQL Editor to set up
 -- the complete Archon database schema and initial data
 -- =====================================================
@@ -47,9 +47,9 @@ BEGIN
 END;
 $$ language 'plpgsql';
 
-CREATE TRIGGER update_archon_settings_updated_at 
-    BEFORE UPDATE ON archon_settings 
-    FOR EACH ROW 
+CREATE TRIGGER update_archon_settings_updated_at
+    BEFORE UPDATE ON archon_settings
+    FOR EACH ROW
     EXECUTE FUNCTION update_updated_at_column();
 
 -- Create RLS (Row Level Security) policies for settings
@@ -197,10 +197,10 @@ CREATE TABLE IF NOT EXISTS archon_crawled_pages (
     source_id TEXT NOT NULL,
     embedding VECTOR(1536),  -- OpenAI embeddings are 1536 dimensions
     created_at TIMESTAMP WITH TIME ZONE DEFAULT timezone('utc'::text, now()) NOT NULL,
-    
+
     -- Add a unique constraint to prevent duplicate chunks for the same URL
     UNIQUE(url, chunk_number),
-    
+
     -- Add foreign key constraint to sources table
     FOREIGN KEY (source_id) REFERENCES archon_sources(source_id)
 );
@@ -221,10 +221,10 @@ CREATE TABLE IF NOT EXISTS archon_code_examples (
     source_id TEXT NOT NULL,
     embedding VECTOR(1536),  -- OpenAI embeddings are 1536 dimensions
     created_at TIMESTAMP WITH TIME ZONE DEFAULT timezone('utc'::text, now()) NOT NULL,
-    
+
     -- Add a unique constraint to prevent duplicate chunks for the same URL
     UNIQUE(url, chunk_number),
-    
+
     -- Add foreign key constraint to sources table
     FOREIGN KEY (source_id) REFERENCES archon_sources(source_id)
 );
@@ -416,7 +416,7 @@ CREATE TABLE IF NOT EXISTS archon_document_versions (
   created_at TIMESTAMPTZ DEFAULT NOW(),
   -- Ensure we have either project_id OR task_id, not both
   CONSTRAINT chk_project_or_task CHECK (
-    (project_id IS NOT NULL AND task_id IS NULL) OR 
+    (project_id IS NOT NULL AND task_id IS NULL) OR
     (project_id IS NULL AND task_id IS NOT NULL)
   ),
   -- Unique constraint to prevent duplicate version numbers per field
@@ -439,51 +439,51 @@ CREATE INDEX IF NOT EXISTS idx_archon_document_versions_version_number ON archon
 CREATE INDEX IF NOT EXISTS idx_archon_document_versions_created_at ON archon_document_versions(created_at);
 
 -- Apply triggers to tables
-CREATE OR REPLACE TRIGGER update_archon_projects_updated_at 
-    BEFORE UPDATE ON archon_projects 
+CREATE OR REPLACE TRIGGER update_archon_projects_updated_at
+    BEFORE UPDATE ON archon_projects
     FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
 
-CREATE OR REPLACE TRIGGER update_archon_tasks_updated_at 
-    BEFORE UPDATE ON archon_tasks 
+CREATE OR REPLACE TRIGGER update_archon_tasks_updated_at
+    BEFORE UPDATE ON archon_tasks
     FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
 
 -- Soft delete function for tasks
 CREATE OR REPLACE FUNCTION archive_task(
     task_id_param UUID,
     archived_by_param TEXT DEFAULT 'system'
-) 
+)
 RETURNS BOOLEAN AS $$
 DECLARE
     task_exists BOOLEAN;
 BEGIN
     -- Check if task exists and is not already archived
     SELECT EXISTS(
-        SELECT 1 FROM archon_tasks 
+        SELECT 1 FROM archon_tasks
         WHERE id = task_id_param AND archived = FALSE
     ) INTO task_exists;
-    
+
     IF NOT task_exists THEN
         RETURN FALSE;
     END IF;
-    
+
     -- Archive the task
-    UPDATE archon_tasks 
-    SET 
+    UPDATE archon_tasks
+    SET
         archived = TRUE,
         archived_at = NOW(),
         archived_by = archived_by_param,
         updated_at = NOW()
     WHERE id = task_id_param;
-    
+
     -- Also archive all subtasks
-    UPDATE archon_tasks 
-    SET 
+    UPDATE archon_tasks
+    SET
         archived = TRUE,
-        archived_at = NOW(), 
+        archived_at = NOW(),
         archived_by = archived_by_param,
         updated_at = NOW()
     WHERE parent_task_id = task_id_param AND archived = FALSE;
-    
+
     RETURN TRUE;
 END;
 $$ LANGUAGE plpgsql;
@@ -520,8 +520,8 @@ CREATE TABLE IF NOT EXISTS archon_prompts (
 CREATE INDEX IF NOT EXISTS idx_archon_prompts_name ON archon_prompts(prompt_name);
 
 -- Add trigger to automatically update updated_at timestamp
-CREATE OR REPLACE TRIGGER update_archon_prompts_updated_at 
-    BEFORE UPDATE ON archon_prompts 
+CREATE OR REPLACE TRIGGER update_archon_prompts_updated_at
+    BEFORE UPDATE ON archon_prompts
     FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();
 
 -- =====================================================
@@ -787,9 +787,9 @@ Remember: Create production-ready data models.', 'System prompt for creating dat
 -- SETUP COMPLETE
 -- =====================================================
 -- Your Archon database is now fully configured!
--- 
+--
 -- Next steps:
 -- 1. Add your OpenAI API key via the Settings UI
 -- 2. Enable Projects feature if needed
 -- 3. Start crawling websites or uploading documents
--- =====================================================
+-- =====================================================