chore(F.4e): remove env-based site loading, unify OAuth Clients, update docs

- Remove env-based site discovery from SiteManager and ProjectManager
- Unify admin and user OAuth Clients into single role-based page
- Update all documentation to reflect DB-based site management
- Clean up env.example, README, ARCHITECTURE docs
- Improve Projects page empty state with link to My Sites
- Remove obsolete env discovery tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

plugins/wordpress/wp_cli.py

@@ -77,12 +77,8 @@ class WPCLIManager:
         try:
             # First, test if we have Docker socket access
             test_process = await asyncio.create_subprocess_exec(
-                "docker",
-                "version",
-                "--format",
-                "{{.Server.Version}}",
-                stdout=asyncio.subprocess.PIPE,
-                stderr=asyncio.subprocess.PIPE,
+                "docker", "version", "--format", "{{.Server.Version}}",
+                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
             )
 
             test_stdout, test_stderr = await asyncio.wait_for(
@@ -103,15 +99,10 @@ class WPCLIManager:
 
             # Now check for our specific container using exact name match
             process = await asyncio.create_subprocess_exec(
-                "docker",
-                "ps",
-                "--all",
-                "--filter",
-                f"name=^{self.container_name}$",
-                "--format",
-                "{{.Names}}|{{.Status}}",
-                stdout=asyncio.subprocess.PIPE,
-                stderr=asyncio.subprocess.PIPE,
+                "docker", "ps", "--all",
+                "--filter", f"name=^{self.container_name}$",
+                "--format", "{{.Names}}|{{.Status}}",
+                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
             )
 
             stdout, stderr = await asyncio.wait_for(process.communicate(), timeout=5.0)
@@ -126,13 +117,8 @@ class WPCLIManager:
             if not output:
                 # Container not found - get list of available containers for helpful error
                 list_process = await asyncio.create_subprocess_exec(
-                    "docker",
-                    "ps",
-                    "--all",
-                    "--format",
-                    "{{.Names}}",
-                    stdout=asyncio.subprocess.PIPE,
-                    stderr=asyncio.subprocess.PIPE,
+                    "docker", "ps", "--all", "--format", "{{.Names}}",
+                    stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
                 )
                 list_stdout, _ = await list_process.communicate()
                 available = list_stdout.decode().strip().split("\n") if list_stdout else []
@@ -184,14 +170,9 @@ class WPCLIManager:
         try:
             # Try to run wp --version
             process = await asyncio.create_subprocess_exec(
-                "docker",
-                "exec",
-                self.container_name,
-                "wp",
-                "--version",
-                "--allow-root",
-                stdout=asyncio.subprocess.PIPE,
-                stderr=asyncio.subprocess.PIPE,
+                "docker", "exec", self.container_name,
+                "wp", "--version", "--allow-root",
+                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
             )
 
             stdout, stderr = await asyncio.wait_for(process.communicate(), timeout=5.0)
@@ -310,9 +291,7 @@ class WPCLIManager:
             )
 
         # 4. Build docker exec command (split command into args to prevent shell injection)
-        cmd_parts = (
-            ["docker", "exec", self.container_name, "wp"] + command.split() + ["--allow-root"]
-        )
+        cmd_parts = ["docker", "exec", self.container_name, "wp"] + command.split() + ["--allow-root"]
 
         self.logger.info(f"Executing: {' '.join(cmd_parts)}")
 
@@ -603,29 +582,17 @@ class WPCLIManager:
         try:
             # Try GNU stat first, fall back to BSD stat
             process = await asyncio.create_subprocess_exec(
-                "docker",
-                "exec",
-                self.container_name,
-                "stat",
-                "-c",
-                "%s",
-                export_path,
-                stdout=asyncio.subprocess.PIPE,
-                stderr=asyncio.subprocess.PIPE,
+                "docker", "exec", self.container_name,
+                "stat", "-c", "%s", export_path,
+                stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
             )
             stdout, _ = await asyncio.wait_for(process.communicate(), timeout=5.0)
             if process.returncode != 0:
                 # BSD stat fallback
                 process = await asyncio.create_subprocess_exec(
-                    "docker",
-                    "exec",
-                    self.container_name,
-                    "stat",
-                    "-f",
-                    "%z",
-                    export_path,
-                    stdout=asyncio.subprocess.PIPE,
-                    stderr=asyncio.subprocess.PIPE,
+                    "docker", "exec", self.container_name,
+                    "stat", "-f", "%z", export_path,
+                    stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
                 )
                 stdout, _ = await asyncio.wait_for(process.communicate(), timeout=5.0)