feat(S05/T02): Added an end-to-end trust-loop regression, surfaced save…

- job-tracker-ui/src/end-to-end-trust-loop.test.tsx
- job-tracker-ui/src/components/JobDetailsDialog.tsx
- job-tracker-ui/src/components/Correspondence.tsx
- .gsd/milestones/M001/slices/S05/S05-UAT.md

job-tracker-ui/src/components/Correspondence.tsx

@@ -405,6 +405,28 @@ export default function Correspondence({ jobId, job }: { jobId: number; job: Job
         )}
       </Paper>
 
+      <Box sx={{ mt: 1.5, p: 1.5, borderRadius: 3, border: "1px solid", borderColor: "divider", backgroundColor: "background.default" }}>
+        <Typography variant="overline">Linked Gmail thread continuity</Typography>
+        <Typography variant="body2" sx={{ color: "text.secondary", mb: 1.25 }}>
+          Linked Gmail refresh only checks threads that are already tied to this job, so new correspondence can appear here without re-importing the whole thread.
+        </Typography>
+        <Box sx={{ display: "flex", gap: 1, flexWrap: "wrap" }}>
+          <Chip size="small" color={gmailStatus?.connected ? "success" : "default"} variant="outlined" label={gmailStatus?.connected ? "Gmail connected" : "Gmail not connected"} />
+          <Chip size="small" color={linkedThreadIds.length > 0 ? "success" : "default"} variant="outlined" label={linkedThreadIds.length > 0 ? `Linked threads: ${linkedThreadIds.length}` : "No linked threads yet"} />
+          {linkedThreadRefresh ? (
+            <Chip
+              size="small"
+              variant="outlined"
+              label={linkedThreadRefresh.imported > 0
+                ? `Last linked refresh imported ${linkedThreadRefresh.imported} new message${linkedThreadRefresh.imported === 1 ? "" : "s"}`
+                : linkedThreadRefresh.hasLinkedThreads
+                  ? `Last linked refresh checked ${linkedThreadRefresh.threadsChecked} linked thread${linkedThreadRefresh.threadsChecked === 1 ? "" : "s"}`
+                  : "No linked Gmail refresh history yet"}
+            />
+          ) : null}
+        </Box>
+      </Box>
+
       <Box sx={{ display: "flex", gap: 1, alignItems: "flex-start", mt: 1.5, flexWrap: "wrap" }}>
         <ToggleButtonGroup exclusive value={from} onChange={(_, v) => v && setFrom(v)} size="small">
           <ToggleButton value="Me">{t("correspondenceMe")}</ToggleButton>

job-tracker-ui/src/components/JobDetailsDialog.tsx

@@ -553,6 +553,7 @@ export default function JobDetailsDialog({ open, jobId, onClose, initialTab = 0,
                 <Chip size="small" label={`Cover letter · ${coverLetterStatus.label}`} color={coverLetterStatus.color} />
                 <Chip size="small" label={`Application answer · ${applicationAnswerStatus.label}`} color={applicationAnswerStatus.color} />
                 <Chip size="small" label={`Recruiter message · ${recruiterMessageStatus.label}`} color={recruiterMessageStatus.color} />
+                <Chip size="small" variant="outlined" label="Saved package material feeds follow-up drafting" />
                 {packageGeneratedAt ? <Chip size="small" variant="outlined" label={`Generated ${new Date(packageGeneratedAt).toLocaleTimeString()}`} /> : null}
               </Box>
               <Typography variant="body2" sx={{ color: "text.secondary", mb: 1.5 }}>{t("jobDetailsTailoredCvIntro")}</Typography>
@@ -584,7 +585,7 @@ export default function JobDetailsDialog({ open, jobId, onClose, initialTab = 0,
               />
               <Box sx={{ p: 1.5, borderRadius: 3, border: "1px solid", borderColor: "divider", backgroundColor: "background.default" }}>
                 <Typography variant="overline">Saved working material</Typography>
-                <Typography variant="body2" sx={{ color: "text.secondary", mb: 1.5 }}>These saved copies are what later slices can trust and reuse.</Typography>
+                <Typography variant="body2" sx={{ color: "text.secondary", mb: 1.5 }}>These saved copies are what follow-up drafting and later slices can trust and reuse.</Typography>
                 <Box sx={{ display: "flex", flexDirection: "column", gap: 1 }}>
                   <Typography variant="body2"><strong>Tailored CV:</strong> {(job?.tailoredCvText ?? "").trim() ? "Saved on this job" : "Not saved yet"}</Typography>
                   <Typography variant="body2"><strong>Cover letter:</strong> {savedPackageWorkspace.coverLetter.trim() ? "Saved on this job" : "Not saved yet"}</Typography>
@@ -632,6 +633,12 @@ export default function JobDetailsDialog({ open, jobId, onClose, initialTab = 0,
                   </FormControl>
                   <Button variant="outlined" onClick={() => setDraftReloadToken((value) => value + 1)}>{t("jobDetailsRegenerateDraft")}</Button>
                 </Box>
+                <Box sx={{ p: 1.5, borderRadius: 3, border: "1px solid", borderColor: "warning.main", backgroundColor: "background.default" }}>
+                  <Typography variant="overline">Manual send boundary</Typography>
+                  <Typography variant="body2" sx={{ color: "text.secondary" }}>
+                    Generating or regenerating this grounded draft never sends recruiter email. The only outbound step is the explicit “Send and log email” action below.
+                  </Typography>
+                </Box>
                 <TextField label={t("jobDetailsRecipient")} value={draftRecipient} onChange={(e) => setDraftRecipient(e.target.value)} helperText={`${t("jobDetailsRecipientHelp")} Manual send only — nothing is dispatched until you press send.`} />
                 <TextField label={t("jobDetailsSubject")} value={draftSubject} onChange={(e) => setDraftSubject(e.target.value)} />
                 <TextField label={t("jobDetailsDraft")} multiline minRows={8} value={draftBody} onChange={(e) => setDraftBody(e.target.value)} helperText="You can edit this before sending. Sending stays manual and logs the sent note back to correspondence." />