Feat/Refactor: Server Client architecture and API

See: https://git-scm.com/docs/gitignore

Co-authored-by: Andrey Nering <andreynering@users.noreply.github.com>

I found Crush was often both too verbose and too terse than I'd like in
different ways when generating the AGENTS.md. This is an attempt to
improve the relevancy of the information it mentions.

As just one example, tabs vs spaces is obvious from the first file read,
so mentioning that style preference in AGENTS.md just wastes tokens.
Since adding this line, I haven't noticed it including trivial details
like that!

Though I've been using this since Dec 20 and liking it, I've mostly used
it and had good results with Claude models. I've not tried it with GPT
or GLM or others yet.

The GetMCPPrompt function was using context.Background() without any
timeout, which could cause the request to hang indefinitely. Since
tea.Cmd doesn't support context passing, we add a 30-second timeout
as a safeguard, consistent with the pattern used in OAuth modules.

Assisted-by: GLM-5 via Crush <crush@charm.land>

Remove FIXME workaround in onboarding dialogs that used hardcoded
cur.Y -= 1 / cur.X -= 1 to adjust cursor position. Extract a new
AdjustOnboardingInputCursor helper that computes the correct offset
from Dialog.View border/padding/margin, eliminating code duplication
between api_key_input.go and models.go.

Check if the command source directory exists before walking it.
If it doesn't exist, return early with no commands instead of
auto-creating it via MkdirAll. Remove the now-unused ensureDir
helper.

Fixes #2526

Signed-off-by: majiayu000 <1835304752@qq.com>

Having a `.crush/.gitignore` showing on `git diff` just because you
started Crush on a directory is annoying.
Having the file there is enough. We don't want to commit it.

Bumps the all group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [charm.land/catwalk](https://github.com/charmbracelet/catwalk) | `0.32.0` | `0.32.1` |
| [github.com/go-git/go-git/v5](https://github.com/go-git/go-git) | `5.17.0` | `5.17.1` |
| [github.com/lucasb-eyer/go-colorful](https://github.com/lucasb-eyer/go-colorful) | `1.3.0` | `1.4.0` |
| [github.com/ncruces/go-sqlite3](https://github.com/ncruces/go-sqlite3) | `0.33.0` | `0.33.2` |
| [github.com/posthog/posthog-go](https://github.com/posthog/posthog-go) | `1.11.1` | `1.11.2` |
| [modernc.org/sqlite](https://gitlab.com/cznic/sqlite) | `1.47.0` | `1.48.0` |


Updates `charm.land/catwalk` from 0.32.0 to 0.32.1
- [Release notes](https://github.com/charmbracelet/catwalk/releases)
- [Commits](https://github.com/charmbracelet/catwalk/compare/v0.32.0...v0.32.1)

Updates `github.com/go-git/go-git/v5` from 5.17.0 to 5.17.1
- [Release notes](https://github.com/go-git/go-git/releases)
- [Commits](https://github.com/go-git/go-git/compare/v5.17.0...v5.17.1)

Updates `github.com/lucasb-eyer/go-colorful` from 1.3.0 to 1.4.0
- [Release notes](https://github.com/lucasb-eyer/go-colorful/releases)
- [Changelog](https://github.com/lucasb-eyer/go-colorful/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lucasb-eyer/go-colorful/compare/v1.3.0...v1.4.0)

Updates `github.com/ncruces/go-sqlite3` from 0.33.0 to 0.33.2
- [Release notes](https://github.com/ncruces/go-sqlite3/releases)
- [Commits](https://github.com/ncruces/go-sqlite3/compare/v0.33.0...v0.33.2)

Updates `github.com/posthog/posthog-go` from 1.11.1 to 1.11.2
- [Release notes](https://github.com/posthog/posthog-go/releases)
- [Changelog](https://github.com/PostHog/posthog-go/blob/master/CHANGELOG.md)
- [Commits](https://github.com/posthog/posthog-go/compare/v1.11.1...v1.11.2)

Updates `modernc.org/sqlite` from 1.47.0 to 1.48.0
- [Changelog](https://gitlab.com/cznic/sqlite/blob/master/CHANGELOG.md)
- [Commits](https://gitlab.com/cznic/sqlite/compare/v1.47.0...v1.48.0)

---
updated-dependencies:
- dependency-name: charm.land/catwalk
  dependency-version: 0.32.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: github.com/go-git/go-git/v5
  dependency-version: 5.17.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: github.com/lucasb-eyer/go-colorful
  dependency-version: 1.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
- dependency-name: github.com/ncruces/go-sqlite3
  dependency-version: 0.33.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: github.com/posthog/posthog-go
  dependency-version: 1.11.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: modernc.org/sqlite
  dependency-version: 1.48.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps the all group with 2 updates: [actions/setup-go](https://github.com/actions/setup-go) and [github/codeql-action](https://github.com/github/codeql-action).


Updates `actions/setup-go` from 6.3.0 to 6.4.0
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](https://github.com/actions/setup-go/compare/4b73464bb391d4059bd26b0524d20df3927bd417...4a3601121dd01d1626a1e23e37211e3254c1c06c)

Updates `github/codeql-action` from 4.34.1 to 4.35.1
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](https://github.com/github/codeql-action/compare/38697555549f1db7851b81482ff19f1fa5c4fedc...c10b8064de6f491fea524254123dbe5e09572f13)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: 6.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
- dependency-name: github/codeql-action
  dependency-version: 4.35.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Change JSONSchemaAlias receiver from value to pointer for consistency
with other Map methods that use pointer receivers for interface
satisfaction.

When a user cancels a tool call by pressing Esc twice, the assistant
message with tool_calls was remaining in the conversation history but
no tool response followed. This caused 400 Bad Request errors from
model providers on the next message.

The fix uses the parent context (ctx) instead of the request context
(genCtx) when updating messages during tool call tracking and tool
result creation. This ensures that even if the request is cancelled
mid-stream, the message updates and creations succeed.

Additionally, the error message was updated from 'Tool execution
canceled by user' to 'Error: user cancelled assistant tool calling'
to better indicate the cancellation occurred during the assistant
tool calling phase.

Fixes #529
Fixes #1206

Replace invalid "finish" key name with "enter" in the OAuth success
state key binding. "finish" is not a valid key name in the key package,
while "enter" is consistent with other key bindings in the codebase
and matches the help text shown to users.

* Closes #2495