docs(plugins): restore the telemetry sweep this branch's merge reverted

The pr4 -> pr5 merge resolved eleven documentation files to the pre-sweep
side, undoing aa770aa6 in its entirety. Because the stack lands in order,
main would have taken the corrected wording in pr1 and then had it reverted
by pr5, leaving the shipped claim wrong again:

- all six hosts' pause skill back to "a minimal anonymous telemetry ping"
- docs/integrations/deepseek-plugin.mdx back to "Anonymous usage events"
- integrations/zapier-mem0/README.md back to advertising telemetry the app
  does not have, with an MEM0_TELEMETRY opt-out that controls nothing
- the README data-dir listing back to omitting telemetry-salt and
  install-state.json, both of which this stack creates
- the README and docs property lists back to the enumeration that drifts

Restored verbatim from pr4. No file here is in pr5's scope, and the full
pr4..pr5 diff is now surface headers only.

Claude-Session: https://claude.ai/code/session_01C7tEmH86HAr7GoAAKCEHZb

integrations/claude-code-plugin/README.md

@@ -137,6 +137,8 @@ Local data lives in `${CLAUDE_PLUGIN_DATA}`:
 - `flush-worker.log`: whether memory creation succeeded
 - `plugin-errors.log`: hook errors (no credentials)
 - `telemetry.jsonl` / `telemetry-identity.json`: usage events and the id they are sent under
+- `telemetry-salt`: random per-install salt for the repo and session hashes
+- `install-state.json`: records that install has been counted once on this machine
 
 Mem0 receives captured user messages, Claude's answers, sidekick assignments and completed responses, and changed file paths. When a failed command is recorded, extraction can also include bounded command details and results. Complete files and general tool output stay on your machine. Values that look like credentials are redacted before anything is sent.
 
@@ -146,7 +148,9 @@ Usage events (which hook ran, timing, result counts, failure types) so Mem0 can
 
 **These events are not anonymous.** When an API key is configured — which installing the plugin requires — events are sent under your Mem0 account email, the same way the Python SDK and the CLI attribute theirs. Without a key they are sent under a random per-machine id.
 
-What each event carries: the event name, the plugin version, the harness it ran in, your OS and Python version, timings, counts, and a coarse failure label. Repository and session identifiers are hashed with a random salt generated on your machine and never sent, so they cannot be linked back to a repository name or path.
+What each event carries: the event name, the plugin version, the harness it ran in, your OS and Python version, and per-event properties describing what happened — timings, counts, coarse outcome and failure labels, and which model was configured. Repository and session identifiers are hashed with a random salt generated on your machine, so they cannot be linked back to a repository name or path.
+
+Rather than restate a list that drifts, the exact set is enforced in code: `telemetry.record` filters every property through a denylist of sensitive keys and redacts credential-shaped values. See `_PRIVATE_KEYS` in `core/telemetry.py`.
 
 Prompts, memory text, queries, file paths, repository names, and API keys are never sent.
 

integrations/claude-code-plugin/skills/pause/SKILL.md

@@ -7,8 +7,8 @@ disable-model-invocation: true
 # Pause memory capture
 
 To pause (hooks stop capturing and sending session content; a minimal
-anonymous telemetry ping still fires at session start unless
-`MEM0_TELEMETRY=false`):
+telemetry ping still fires at session start, under your Mem0 account email,
+unless `MEM0_TELEMETRY=false`):
 
 ```bash
 python3 "${CLAUDE_PLUGIN_ROOT}/core/memory_cli.py" --harness "claude-code" --plugin-data-dir "${CLAUDE_PLUGIN_DATA}" pause