Merge remote-tracking branch 'origin/main' into feat/agent-phase0-enhancements

# Conflicts:
#	CHANGELOG.md

Author: elkaix

CHANGELOG.md

@@ -22,6 +22,7 @@ GitHub Releases page; `0.8.0` is the new starting line.
 - **No more spurious `coroutine … was never awaited` warnings.** Dropped Sentry's `AsyncioIntegration`, whose `create_task` monkeypatch wrapped every coroutine and — when a task was cancelled before its first step during turn/prompt teardown — orphaned the inner coroutine, printing `WireUISide.receive` and prompt_toolkit "never awaited" `RuntimeWarning`s to the console. The integration added no spans (tracing/profiling are off), and exception capture for async tasks is preserved by the existing asyncio exception handler.
 - **Read-only profile guard hardened against version-pinned interpreters.** Inline-code interpreter invocations that use a version-suffixed or absolute binary (`python3.14 -c …`, `/usr/bin/python3.12 -c …`, `node20 -e …`) are now classified as mutating/destructive just like the bare `python`/`node` forms, so they can no longer bypass a read-only subagent profile or skip destructive deliberation.
 - **The agent sets up and removes MCP servers on request instead of refusing.** Asked to add, remove, or set up an MCP server, the default agent now knows it runs in Pythinker: it configures the server with the `pythinker mcp add`/`remove` CLI (or by editing `~/.pythinker/mcp.json` / `./.pythinker/mcp.json`), verifies with `pythinker mcp list`/`test`, and tells you to restart or `/reload` to load the change — rather than refusing or citing Claude Code/Desktop config paths (`~/.claude.json`) it cannot use. The prompt now also hard-steers the agent away from writing `mcpServers` into `~/.pythinker/config.yaml` (YAML is never parsed for MCP, so such an entry is silently dropped and the server never appears in `/mcp`). As a backstop, MCP config loading now logs a warning when it finds an `mcpServers` block in a `config.yaml` (global or project), so a human or agent that misplaces it gets a diagnosable trace instead of a silent drop.
+- **Security: dependency vulnerability remediation.** Cleared the open Dependabot advisories across all manifests. Python: `asyncssh` 2.22.0 → 2.23.0 (path-traversal in `AuthorizedKeysFile %u`) in the `pythinker-host` pin and both lockfiles, and `starlette` 1.0.0 → 1.2.1 (Host-header path poisoning). JS: regenerated the `web`, `vis`, and `install-counter-worker` lockfiles and bumped the worker's `vitest` to `^3.2.6` (critical Vitest UI arbitrary file read/exec), clearing all critical/high/moderate advisories. The only residual is a handful of low-severity transitive `elliptic`/`bn.js` advisories in `web`'s browser crypto polyfill chain, left unforced because the fix downgrades `vite-plugin-node-polyfills` and majors `ai`, breaking the build for marginal benefit.
 
 ## 0.38.0 (2026-06-08)