fix(telemetry): resolve 15 latent bugs across telemetry modules

[deer]

Fixes 15 of 18 bugs from the telemetry bug analysis. Three required no code change: BUG-15 (ANSI cursor N+1) is intentional and load-bearing — documented in ANSIBasedTelemetryRecorder.render(); BUG-16 (render thread interrupt handling) was correct
as-is — re-interrupting would cause a busy-loop since the exit condition is renderFuture.isDone(), not the interrupt flag, also documented. BUG-10 (Meter.progress() race) is left unfixed with a comment — narrow window, minor consequence.

base-telemetry

• Null format guard in all 10 create() factories (BUG-2)
• Fixed Completed.toString() time arithmetic for durations >1 day — was subtracting adjusted hours from total minutes instead of using % (BUG-8)
• Removed stray null from TelemetryRecorder.diagnostic(Location, ...) that always caused NPE (BUG-11)
• Javadoc corrections in TextualRange.start() and Commenced.create() (BUG-1, BUG-7)

base-telemetry-foundation

• Fixed double-formatting of description in AbstractTelemetryRecorder.commence() — description was formatted once then passed as a format string again to Commenced.create() (BUG-9)
• ObservableTelemetryRecorder.uri() now returns the stored URI instead of delegating to the wrapped recorder (BUG-13)
• stream() and hasObserved() now take a snapshot under lock and traverse outside it — prevents ConcurrentModificationException without blocking recording threads during predicate evaluation (BUG-12)
• PrintStreamTelemetryRecorder now routes Fatal and Warning to errorStream (BUG-14)

base-telemetry-ansi

• ProgressBar counter now clamps to [0, total] on each delta, eliminating negative percentages and >100% display (BUG-4, BUG-5)
• close() sets counter to total before removal so the bar always renders at 100% on close (BUG-6)
• Explicit total == 0 guard replacing silent NaN→int cast (BUG-3)
• remove() now clears the activity list before calling render() to prevent blank-line flicker on last removal (BUG-17)
• message field made final (BUG-18)