* raft: initial work on raft ha storage support

* add note on join

* add todo note

* raft: add support for bootstrapping and joining existing nodes

* raft: gate bootstrap join by reading leader api address from storage

* raft: properly check for raft-only for certain conditionals

* raft: add bootstrap to api and cli

* raft: fix bootstrap cli command

* raft: add test for setting up new cluster with raft HA

* raft: extend TestRaft_HA_NewCluster to include inmem and consul backends

* raft: add test for updating an existing cluster to use raft HA

* raft: remove debug log lines, clean up verifyRaftPeers

* raft: minor cleanup

* raft: minor cleanup

* Update physical/raft/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/ha.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/ha.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/logical_system_raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* address feedback comments

* address feedback comments

* raft: refactor tls keyring logic

* address feedback comments

* Update vault/raft.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* address feedback comments

* testing: fix import ordering

* raft: rename var, cleanup comment line

* docs: remove ha_storage restriction note on raft

* docs: more raft HA interaction updates with migration and recovery mode

* docs: update the raft join command

* raft: update comments

* raft: add missing isRaftHAOnly check for clearing out state set earlier

* raft: update a few ha_storage config checks

* Update command/operator_raft_bootstrap.go
Co-authored-by: Vishal Nayak <vishalnayak@users.noreply.github.com>

* raft: address feedback comments

* raft: fix panic when checking for config.HAStorage.Type

* Update vault/raft.go
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* Update website/pages/docs/commands/operator/raft.mdx
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>

* raft: remove bootstrap cli command

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* Update vault/raft.go
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>

* raft: address review feedback

* raft: revert vendored sdk

* raft: don't send applied index and node ID info if we're HA-only
Co-authored-by: Brian Kassouf <briankassouf@users.noreply.github.com>
Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>
Co-authored-by: Vishal Nayak <vishalnayak@users.noreply.github.com>