add CHANGELOG.md to prepare for v2.11.0 release (#326)

GitOrigin-RevId: 428e42ba123619733dae81a3e591417163e8ffcd

Author: blue-keleher

CHANGELOG.md

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+# Changelog
+
+## [2.11.0] - 2026-03-03
+
+### Added
+
+#### Workflows
+- `render workflows list` interactive palette for browsing and managing workflows
+- Support for named-parameter (object) input for task runs (Python workflows only)
+
+#### Early Access
+- `render ea objects delete` supports deleting multiple objects
+
+### Changed
+
+#### General
+- Skip auth and workspace selection prompts for `--local` commands
+
+#### Workflows
+- **Breaking:** Promoted workflows commands from `render ea` to `render workflows`
+- **Breaking:** Moved `taskruns start` to `tasks start`
+- **Breaking:** Renamed `taskruns` command to `runs`
+- Moved local development `dev` command from `workflows tasks` to `workflows`
+- Skip version selection step in interactive task navigation (use most recent version)
+- Use compact tables for workflows task and task run lists
+- Improved `tasks dev` startup output
+
+### Fixed
+
+#### General
+- Show loading spinner in content pane only, keeping header and footer visible
+
+#### Workflows
+- Fixed `--wait` on `versions release` to poll until completion
+- Fixed `tasks dev` hang when start command is invalid or crashes
+- Fixed local task run input display and interactive mode bugs
+- Fixed local `taskruns list` when no task id specified or id is a slug
+- Fixed local dev server generating UUIDs instead of XIDs for task IDs
+- Fixed local dev server logs endpoint returning incorrect response format
+- Fixed referencing local dev server tasks by slug only
+- Fixed malformed format string in `taskruns show -o text`
+- Fixed "service id" error typo when validating TaskRunInput
+- Fixed missing parent and root task ids in local task runs
+- Fixed local dev server returning task runs with `attempts: null`
+- Fixed error message when starting a task run for a nonexistent task in local dev