Fix Playwright and Backlog MCPs not using their configured defaults

.devcontainer/Dockerfile

@@ -58,7 +58,6 @@ RUN \
     nano \
     vim \
     moreutils \
-    xvfb \
     chromium && \
   apt-get clean && \
   rm --recursive --force "/var/lib/apt/lists/*" && \

.devcontainer/config/claude/managed-mcp.json

@@ -2,14 +2,16 @@
   "mcpServers": {
     "backlog-md": {
       "command": "backlog-mcp",
-      "args": ["start"]
+      "args": ["start"],
+      "env": {
+        "PWD": "/workspace"
+      }
     },
     "playwright": {
       "command": "npx",
-      "args": ["@playwright/mcp@latest", "--browser", "chromium"],
+      "args": ["@playwright/mcp@latest", "--browser", "chromium", "--executable-path", "/usr/bin/chromium", "--headless"],
       "env": {
-        "PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD": "1",
-        "DISPLAY": ":99"
+        "PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD": "1"
       }
     },
     "context7": {

.devcontainer/config/codex/managed_config.toml

@@ -42,8 +42,9 @@ args = []
 [mcp_servers.backlog-md]
 command = "backlog-mcp"
 args = ["start"]
+env = { PWD = "/workspace" }
 
 [mcp_servers.playwright]
 command = "npx"
-args = ["@playwright/mcp@latest", "--browser", "chromium"]
-env = { PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = "1", DISPLAY = ":99" }
+args = ["@playwright/mcp@latest", "--browser", "chromium", "--executable-path", "/usr/bin/chromium", "--headless"]
+env = { PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = "1" }

.devcontainer/config/opencode/managed_config.json

@@ -11,14 +11,16 @@
     },
     "backlog-md": {
       "type": "local",
-      "command": ["backlog-mcp", "start"]
+      "command": ["backlog-mcp", "start"],
+      "env": {
+        "PWD": "/workspace"
+      }
     },
     "playwright": {
       "type": "local",
-      "command": ["npx", "@playwright/mcp@latest", "--browser", "chromium"],
+      "command": ["npx", "@playwright/mcp@latest", "--browser", "chromium", "--executable-path", "/usr/bin/chromium", "--headless"],
       "env": {
-        "PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD": "1",
-        "DISPLAY": ":99"
+        "PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD": "1"
       }
     }
   },

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Playwright MCP (`claude`, `codex`, `opencode`) now launches the apt-installed `/usr/bin/chromium` headlessly via `--executable-path`/`--headless`, instead of falling back to its own separately-downloaded `chrome-for-testing` build (`--browser chromium` alone resolves to that channel internally). Removed the `xvfb` apt package and the unused `DISPLAY` env var, both dead weight since no Xvfb server was ever started.
+- Backlog MCP (`backlog-md`) now gets an explicit `PWD=/workspace` env var so it correctly detects an already-initialized Backlog.md project instead of inheriting a stale `PWD` from the VS Code server process chain and reporting "not initialized".
+
 ## [Version 0.2]
 
 ### Added