Update repository metadata, fix logout in local mode, add starter cre…

…dit display, fix low balance threshold, remove dead code, and add npm README (#14)

* fix: update package and GoReleaser descriptions to approved positioning

Description: A proxied shell for terminal workflows. Open a session,
connect a route, and run commands normally.

Added npm keywords: automation, cli, command-line-tool, developer-tools,
geo-testing, http-proxy, network-debugging, proxy, shell, terminal.

Signed-off-by: contra <[email protected]>

* chore: gitignore agent instruction files

Signed-off-by: contra <[email protected]>

* docs: update README copy and quickstart (MKT-003)

- Opening: "Every terminal can be somewhere else"
- Quickstart: show interactive mode + direct mode
- How it works: simplified, link to compatibility matrix
- Add local proxy mode subsection

Ref: MKT-003
Signed-off-by: contra <[email protected]>

* feat: display starter credit message on login (MKT-007)

Signed-off-by: contra <[email protected]>

* fix: /logout uses correct config dir in local mode

/logout was hardcoded to ~/.shellroute/config.toml. In local mode
(~/.shellroute-mode=local) the config is at ~/.shellroute-local/.
Now exports SHELLROUTE_CONFIG_DIR from config.Dir() and /logout
reads it with fallback to ~/.shellroute.

Signed-off-by: contra <[email protected]>

* fix: starter credit message displayed with newline and bold

Signed-off-by: contra <[email protected]>

* fix: use server low_balance flag instead of hardcoded $0.50 threshold

Signed-off-by: contra <[email protected]>

* refactor: merge Run and RunWithConnect into single Run function

RunWithConnect was dead code (never called). Run now takes an
optional country parameter for auto-connect.

Signed-off-by: contra <[email protected]>

* refactor: remove unused country parameter from Run

Signed-off-by: contra <[email protected]>

* refactor: remove unused StartWithCredentials

Signed-off-by: contra <[email protected]>

* docs: fix quickstart flow, add npm README, set npm versions to 0.0.0

Signed-off-by: contra <[email protected]>

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Signed-off-by: contra <[email protected]>

fix: npm entrypoint compatible with Node 8+ (#12)

Signed-off-by: contra <[email protected]>

fix: add repository.url to all npm package.json for provenance verifi…

…cation (#11)

Signed-off-by: contra <[email protected]>

feat: initial public CLI release