fix(Canvas): pin molecule-ai-workspace-runtime>=0.1.999 in all external workspace snippets

The molecule-mcp console script (required for heartbeat + registration)

was added in v0.1.999. Without this pin, users with older versions get

silent failures - MCP starts but workspace shows OFFLINE.

workspace-server/internal/handlers/external_connection.go

@@ -225,7 +225,7 @@ const externalUniversalMcpTemplate = `# Universal MCP — standalone register +
 # python3.12 / etc.) or use a 3.11+ venv.
 
 # 1. Install the workspace runtime wheel:
-pip install molecule-ai-workspace-runtime
+pip install "molecule-ai-workspace-runtime>=0.1.999"
 
 # 2. Wire molecule-mcp into your agent's MCP config. Claude Code:
 claude mcp add molecule -s user -- env \
@@ -336,7 +336,7 @@ const externalHermesChannelTemplate = `# Hermes channel — bridges this workspa
 # also supported via the plugin's dual-mode fallback.
 #
 # 1. Install the runtime + plugin:
-pip install molecule-ai-workspace-runtime
+pip install "molecule-ai-workspace-runtime>=0.1.999"
 pip install 'git+https://git.moleculesai.app/molecule-ai/hermes-channel-molecule.git'
 
 # 2. Export the workspace credentials:
@@ -407,7 +407,7 @@ const externalCodexTemplate = `# Codex external setup — outbound tools (MCP) +
 
 # 1. Install codex CLI, the workspace runtime, and the bridge daemon:
 npm install -g @openai/codex@latest
-pip install molecule-ai-workspace-runtime
+pip install "molecule-ai-workspace-runtime>=0.1.999"
 pip install codex-channel-molecule
 
 # 2. Wire the molecule MCP server into codex's config.toml — this is
@@ -499,7 +499,7 @@ const externalKimiTemplate = `# Kimi CLI external setup — register + heartbeat
 # No public URL needed; runs behind NAT in poll mode.
 
 # 1. Install the workspace runtime wheel (provides HTTP client):
-pip install molecule-ai-workspace-runtime
+pip install "molecule-ai-workspace-runtime>=0.1.999"
 
 # 2. Save credentials and the bridge script:
 mkdir -p ~/.molecule-ai/kimi-workspace
@@ -647,7 +647,7 @@ const externalOpenClawTemplate = `# OpenClaw MCP config — outbound tool path.
 
 # 1. Install openclaw CLI + the workspace runtime wheel:
 npm install -g openclaw@latest
-pip install molecule-ai-workspace-runtime
+pip install "molecule-ai-workspace-runtime>=0.1.999"
 
 # 2. Onboard openclaw against your model provider (one-time setup).
 #    --non-interactive needs an explicit --provider + --model so it